Home / 5,354.40-8,031.60-4,252.80

Finding the Fourth Proportional to 5,354.40, 8,031.60 and 4,252.80

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Solution

The fourth proportional to 5,354.40, 8,031.60 and 4,252.80 is: 6,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.40 : 8,031.60 = 4,252.80 : x
  2. Step 2: Convert to fraction form
    5,354.40/8,031.60 = 4,252.80/x
  3. Step 3: Cross multiply
    5,354.40x = 8,031.60 × 4,252.80
  4. Step 4: Simplify right side
    5,354.40x = 34,156,788.48
  5. Step 5: Solve for x
    x = 34,156,788.48/5,354.40
  6. Step 6: Final answer
    x = 6,379.20

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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.