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Finding the Fourth Proportional to 1,102.37, 1,521.14 and 654.26

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Solution

The fourth proportional to 1,102.37, 1,521.14 and 654.26 is: 902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.37 : 1,521.14 = 654.26 : x
  2. Step 2: Convert to fraction form
    1,102.37/1,521.14 = 654.26/x
  3. Step 3: Cross multiply
    1,102.37x = 1,521.14 × 654.26
  4. Step 4: Simplify right side
    1,102.37x = 995,210.18
  5. Step 5: Solve for x
    x = 995,210.18/1,102.37
  6. Step 6: Final answer
    x = 902.80

Related Problems

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Half scale
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Double scale
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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.