Home / 1,931.28-2,897.19-632.49

Finding the Fourth Proportional to 1,931.28, 2,897.19 and 632.49

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Solution

The fourth proportional to 1,931.28, 2,897.19 and 632.49 is: 948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.28 : 2,897.19 = 632.49 : x
  2. Step 2: Convert to fraction form
    1,931.28/2,897.19 = 632.49/x
  3. Step 3: Cross multiply
    1,931.28x = 2,897.19 × 632.49
  4. Step 4: Simplify right side
    1,931.28x = 1,832,443.70
  5. Step 5: Solve for x
    x = 1,832,443.70/1,931.28
  6. Step 6: Final answer
    x = 948.82

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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.