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Finding the Fourth Proportional to 1,295.54, 1,942.62 and 637.13

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Solution

The fourth proportional to 1,295.54, 1,942.62 and 637.13 is: 955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.54 : 1,942.62 = 637.13 : x
  2. Step 2: Convert to fraction form
    1,295.54/1,942.62 = 637.13/x
  3. Step 3: Cross multiply
    1,295.54x = 1,942.62 × 637.13
  4. Step 4: Simplify right side
    1,295.54x = 1,237,691.77
  5. Step 5: Solve for x
    x = 1,237,691.77/1,295.54
  6. Step 6: Final answer
    x = 955.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.