Home / 7,054.28-10,581.47-2,123.90

Finding the Fourth Proportional to 7,054.28, 10,581.47 and 2,123.90

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Solution

The fourth proportional to 7,054.28, 10,581.47 and 2,123.90 is: 3,185.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.28 : 10,581.47 = 2,123.90 : x
  2. Step 2: Convert to fraction form
    7,054.28/10,581.47 = 2,123.90/x
  3. Step 3: Cross multiply
    7,054.28x = 10,581.47 × 2,123.90
  4. Step 4: Simplify right side
    7,054.28x = 22,473,920.61
  5. Step 5: Solve for x
    x = 22,473,920.61/7,054.28
  6. Step 6: Final answer
    x = 3,185.86

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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.