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Finding the Fourth Proportional to 1,283.38, 1,925.22 and 503.38

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Solution

The fourth proportional to 1,283.38, 1,925.22 and 503.38 is: 755.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.38 : 1,925.22 = 503.38 : x
  2. Step 2: Convert to fraction form
    1,283.38/1,925.22 = 503.38/x
  3. Step 3: Cross multiply
    1,283.38x = 1,925.22 × 503.38
  4. Step 4: Simplify right side
    1,283.38x = 969,117.24
  5. Step 5: Solve for x
    x = 969,117.24/1,283.38
  6. Step 6: Final answer
    x = 755.13

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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.