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Finding the Fourth Proportional to 886.38, 1,223.27 and 651.07

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Solution

The fourth proportional to 886.38, 1,223.27 and 651.07 is: 898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.38 : 1,223.27 = 651.07 : x
  2. Step 2: Convert to fraction form
    886.38/1,223.27 = 651.07/x
  3. Step 3: Cross multiply
    886.38x = 1,223.27 × 651.07
  4. Step 4: Simplify right side
    886.38x = 796,434.40
  5. Step 5: Solve for x
    x = 796,434.40/886.38
  6. Step 6: Final answer
    x = 898.52

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.