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Finding the Fourth Proportional to 1,135.06, 1,566.10 and 662.69

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Solution

The fourth proportional to 1,135.06, 1,566.10 and 662.69 is: 914.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.06 : 1,566.10 = 662.69 : x
  2. Step 2: Convert to fraction form
    1,135.06/1,566.10 = 662.69/x
  3. Step 3: Cross multiply
    1,135.06x = 1,566.10 × 662.69
  4. Step 4: Simplify right side
    1,135.06x = 1,037,831.81
  5. Step 5: Solve for x
    x = 1,037,831.81/1,135.06
  6. Step 6: Final answer
    x = 914.34

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.