Home / 3,491.40-5,238.02-1,151.76

Finding the Fourth Proportional to 3,491.40, 5,238.02 and 1,151.76

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Solution

The fourth proportional to 3,491.40, 5,238.02 and 1,151.76 is: 1,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.40 : 5,238.02 = 1,151.76 : x
  2. Step 2: Convert to fraction form
    3,491.40/5,238.02 = 1,151.76/x
  3. Step 3: Cross multiply
    3,491.40x = 5,238.02 × 1,151.76
  4. Step 4: Simplify right side
    3,491.40x = 6,032,957.96
  5. Step 5: Solve for x
    x = 6,032,957.96/3,491.40
  6. Step 6: Final answer
    x = 1,727.95

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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.