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Finding the Fourth Proportional to 695.04, 1,037.43 and 637.32

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Solution

The fourth proportional to 695.04, 1,037.43 and 637.32 is: 951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.04 : 1,037.43 = 637.32 : x
  2. Step 2: Convert to fraction form
    695.04/1,037.43 = 637.32/x
  3. Step 3: Cross multiply
    695.04x = 1,037.43 × 637.32
  4. Step 4: Simplify right side
    695.04x = 661,174.89
  5. Step 5: Solve for x
    x = 661,174.89/695.04
  6. Step 6: Final answer
    x = 951.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.