Home / 5,123.16-7,685.95-1,660.41

Finding the Fourth Proportional to 5,123.16, 7,685.95 and 1,660.41

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Solution

The fourth proportional to 5,123.16, 7,685.95 and 1,660.41 is: 2,491.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.16 : 7,685.95 = 1,660.41 : x
  2. Step 2: Convert to fraction form
    5,123.16/7,685.95 = 1,660.41/x
  3. Step 3: Cross multiply
    5,123.16x = 7,685.95 × 1,660.41
  4. Step 4: Simplify right side
    5,123.16x = 12,761,824.09
  5. Step 5: Solve for x
    x = 12,761,824.09/5,123.16
  6. Step 6: Final answer
    x = 2,491.01

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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.