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Finding the Fourth Proportional to 683.13, 937.08 and 677.28

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Solution

The fourth proportional to 683.13, 937.08 and 677.28 is: 929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.13 : 937.08 = 677.28 : x
  2. Step 2: Convert to fraction form
    683.13/937.08 = 677.28/x
  3. Step 3: Cross multiply
    683.13x = 937.08 × 677.28
  4. Step 4: Simplify right side
    683.13x = 634,665.54
  5. Step 5: Solve for x
    x = 634,665.54/683.13
  6. Step 6: Final answer
    x = 929.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.