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Finding the Fourth Proportional to 1,951.12, 2,925.24 and 1,299.76

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Solution

The fourth proportional to 1,951.12, 2,925.24 and 1,299.76 is: 1,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.12 : 2,925.24 = 1,299.76 : x
  2. Step 2: Convert to fraction form
    1,951.12/2,925.24 = 1,299.76/x
  3. Step 3: Cross multiply
    1,951.12x = 2,925.24 × 1,299.76
  4. Step 4: Simplify right side
    1,951.12x = 3,802,109.94
  5. Step 5: Solve for x
    x = 3,802,109.94/1,951.12
  6. Step 6: Final answer
    x = 1,948.68

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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.