Home / 1,434.06-2,151.69-972.36

Finding the Fourth Proportional to 1,434.06, 2,151.69 and 972.36

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Solution

The fourth proportional to 1,434.06, 2,151.69 and 972.36 is: 1,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.06 : 2,151.69 = 972.36 : x
  2. Step 2: Convert to fraction form
    1,434.06/2,151.69 = 972.36/x
  3. Step 3: Cross multiply
    1,434.06x = 2,151.69 × 972.36
  4. Step 4: Simplify right side
    1,434.06x = 2,092,217.29
  5. Step 5: Solve for x
    x = 2,092,217.29/1,434.06
  6. Step 6: Final answer
    x = 1,458.95

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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.