Home / 1,531.30-2,296.95-1,260.76

Finding the Fourth Proportional to 1,531.30, 2,296.95 and 1,260.76

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Solution

The fourth proportional to 1,531.30, 2,296.95 and 1,260.76 is: 1,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.30 : 2,296.95 = 1,260.76 : x
  2. Step 2: Convert to fraction form
    1,531.30/2,296.95 = 1,260.76/x
  3. Step 3: Cross multiply
    1,531.30x = 2,296.95 × 1,260.76
  4. Step 4: Simplify right side
    1,531.30x = 2,895,884.89
  5. Step 5: Solve for x
    x = 2,895,884.89/1,531.30
  6. Step 6: Final answer
    x = 1,891.13

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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.