Home / 2,926.40-4,382.64-1,691.20

Finding the Fourth Proportional to 2,926.40, 4,382.64 and 1,691.20

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Solution

The fourth proportional to 2,926.40, 4,382.64 and 1,691.20 is: 2,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.40 : 4,382.64 = 1,691.20 : x
  2. Step 2: Convert to fraction form
    2,926.40/4,382.64 = 1,691.20/x
  3. Step 3: Cross multiply
    2,926.40x = 4,382.64 × 1,691.20
  4. Step 4: Simplify right side
    2,926.40x = 7,411,920.77
  5. Step 5: Solve for x
    x = 7,411,920.77/2,926.40
  6. Step 6: Final answer
    x = 2,532.78

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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.