Home / 1,288.53-1,931.97-466.72

Finding the Fourth Proportional to 1,288.53, 1,931.97 and 466.72

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Solution

The fourth proportional to 1,288.53, 1,931.97 and 466.72 is: 699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288.53 : 1,931.97 = 466.72 : x
  2. Step 2: Convert to fraction form
    1,288.53/1,931.97 = 466.72/x
  3. Step 3: Cross multiply
    1,288.53x = 1,931.97 × 466.72
  4. Step 4: Simplify right side
    1,288.53x = 901,689.04
  5. Step 5: Solve for x
    x = 901,689.04/1,288.53
  6. Step 6: Final answer
    x = 699.78

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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.