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Finding the Fourth Proportional to 695.98, 955.15 and 630.37

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Solution

The fourth proportional to 695.98, 955.15 and 630.37 is: 865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.98 : 955.15 = 630.37 : x
  2. Step 2: Convert to fraction form
    695.98/955.15 = 630.37/x
  3. Step 3: Cross multiply
    695.98x = 955.15 × 630.37
  4. Step 4: Simplify right side
    695.98x = 602,097.91
  5. Step 5: Solve for x
    x = 602,097.91/695.98
  6. Step 6: Final answer
    x = 865.11

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Double scale
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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.