Home / 5,421.30-8,132.22-1,525.20

Finding the Fourth Proportional to 5,421.30, 8,132.22 and 1,525.20

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Solution

The fourth proportional to 5,421.30, 8,132.22 and 1,525.20 is: 2,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.30 : 8,132.22 = 1,525.20 : x
  2. Step 2: Convert to fraction form
    5,421.30/8,132.22 = 1,525.20/x
  3. Step 3: Cross multiply
    5,421.30x = 8,132.22 × 1,525.20
  4. Step 4: Simplify right side
    5,421.30x = 12,403,261.94
  5. Step 5: Solve for x
    x = 12,403,261.94/5,421.30
  6. Step 6: Final answer
    x = 2,287.88

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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.