Home / 5,421.17-8,130.12-2,301.12

Finding the Fourth Proportional to 5,421.17, 8,130.12 and 2,301.12

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Solution

The fourth proportional to 5,421.17, 8,130.12 and 2,301.12 is: 3,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.17 : 8,130.12 = 2,301.12 : x
  2. Step 2: Convert to fraction form
    5,421.17/8,130.12 = 2,301.12/x
  3. Step 3: Cross multiply
    5,421.17x = 8,130.12 × 2,301.12
  4. Step 4: Simplify right side
    5,421.17x = 18,708,381.73
  5. Step 5: Solve for x
    x = 18,708,381.73/5,421.17
  6. Step 6: Final answer
    x = 3,450.99

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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.