Home / 1,931.38-2,896.45-632.54

Finding the Fourth Proportional to 1,931.38, 2,896.45 and 632.54

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Solution

The fourth proportional to 1,931.38, 2,896.45 and 632.54 is: 948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.38 : 2,896.45 = 632.54 : x
  2. Step 2: Convert to fraction form
    1,931.38/2,896.45 = 632.54/x
  3. Step 3: Cross multiply
    1,931.38x = 2,896.45 × 632.54
  4. Step 4: Simplify right side
    1,931.38x = 1,832,126.14
  5. Step 5: Solve for x
    x = 1,832,126.14/1,931.38
  6. Step 6: Final answer
    x = 948.61

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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.