Home / 5,285.11-7,928.98-1,587.41

Finding the Fourth Proportional to 5,285.11, 7,928.98 and 1,587.41

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Solution

The fourth proportional to 5,285.11, 7,928.98 and 1,587.41 is: 2,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.11 : 7,928.98 = 1,587.41 : x
  2. Step 2: Convert to fraction form
    5,285.11/7,928.98 = 1,587.41/x
  3. Step 3: Cross multiply
    5,285.11x = 7,928.98 × 1,587.41
  4. Step 4: Simplify right side
    5,285.11x = 12,586,542.14
  5. Step 5: Solve for x
    x = 12,586,542.14/5,285.11
  6. Step 6: Final answer
    x = 2,381.51

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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.