Home / 5,721.60-8,582.40-4,166.40

Finding the Fourth Proportional to 5,721.60, 8,582.40 and 4,166.40

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Solution

The fourth proportional to 5,721.60, 8,582.40 and 4,166.40 is: 6,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.60 : 8,582.40 = 4,166.40 : x
  2. Step 2: Convert to fraction form
    5,721.60/8,582.40 = 4,166.40/x
  3. Step 3: Cross multiply
    5,721.60x = 8,582.40 × 4,166.40
  4. Step 4: Simplify right side
    5,721.60x = 35,757,711.36
  5. Step 5: Solve for x
    x = 35,757,711.36/5,721.60
  6. Step 6: Final answer
    x = 6,249.60

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Similar ratio
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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.