Home / 5,721.49-8,583.60-2,387.88

Finding the Fourth Proportional to 5,721.49, 8,583.60 and 2,387.88

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Solution

The fourth proportional to 5,721.49, 8,583.60 and 2,387.88 is: 3,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.49 : 8,583.60 = 2,387.88 : x
  2. Step 2: Convert to fraction form
    5,721.49/8,583.60 = 2,387.88/x
  3. Step 3: Cross multiply
    5,721.49x = 8,583.60 × 2,387.88
  4. Step 4: Simplify right side
    5,721.49x = 20,496,600.80
  5. Step 5: Solve for x
    x = 20,496,600.80/5,721.49
  6. Step 6: Final answer
    x = 3,582.39

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1.5x scale

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.