Home / 5,729.40-8,587.62-2,440.80

Finding the Fourth Proportional to 5,729.40, 8,587.62 and 2,440.80

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Solution

The fourth proportional to 5,729.40, 8,587.62 and 2,440.80 is: 3,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.40 : 8,587.62 = 2,440.80 : x
  2. Step 2: Convert to fraction form
    5,729.40/8,587.62 = 2,440.80/x
  3. Step 3: Cross multiply
    5,729.40x = 8,587.62 × 2,440.80
  4. Step 4: Simplify right side
    5,729.40x = 20,960,662.90
  5. Step 5: Solve for x
    x = 20,960,662.90/5,729.40
  6. Step 6: Final answer
    x = 3,658.44

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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.