Home / 5,781.35-8,671.33-1,621.70

Finding the Fourth Proportional to 5,781.35, 8,671.33 and 1,621.70

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Solution

The fourth proportional to 5,781.35, 8,671.33 and 1,621.70 is: 2,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.35 : 8,671.33 = 1,621.70 : x
  2. Step 2: Convert to fraction form
    5,781.35/8,671.33 = 1,621.70/x
  3. Step 3: Cross multiply
    5,781.35x = 8,671.33 × 1,621.70
  4. Step 4: Simplify right side
    5,781.35x = 14,062,248.45
  5. Step 5: Solve for x
    x = 14,062,248.45/5,781.35
  6. Step 6: Final answer
    x = 2,432.35

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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.