Home / 5,711.20-8,566.80-4,789.60

Finding the Fourth Proportional to 5,711.20, 8,566.80 and 4,789.60

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Solution

The fourth proportional to 5,711.20, 8,566.80 and 4,789.60 is: 7,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.20 : 8,566.80 = 4,789.60 : x
  2. Step 2: Convert to fraction form
    5,711.20/8,566.80 = 4,789.60/x
  3. Step 3: Cross multiply
    5,711.20x = 8,566.80 × 4,789.60
  4. Step 4: Simplify right side
    5,711.20x = 41,031,545.28
  5. Step 5: Solve for x
    x = 41,031,545.28/5,711.20
  6. Step 6: Final answer
    x = 7,184.40

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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.