Home / 5,421.17-8,131.76-1,525.58

Finding the Fourth Proportional to 5,421.17, 8,131.76 and 1,525.58

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Solution

The fourth proportional to 5,421.17, 8,131.76 and 1,525.58 is: 2,288.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.17 : 8,131.76 = 1,525.58 : x
  2. Step 2: Convert to fraction form
    5,421.17/8,131.76 = 1,525.58/x
  3. Step 3: Cross multiply
    5,421.17x = 8,131.76 × 1,525.58
  4. Step 4: Simplify right side
    5,421.17x = 12,405,650.42
  5. Step 5: Solve for x
    x = 12,405,650.42/5,421.17
  6. Step 6: Final answer
    x = 2,288.37

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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.