Home / 5,416.68-8,125.06-1,521.12

Finding the Fourth Proportional to 5,416.68, 8,125.06 and 1,521.12

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Solution

The fourth proportional to 5,416.68, 8,125.06 and 1,521.12 is: 2,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.68 : 8,125.06 = 1,521.12 : x
  2. Step 2: Convert to fraction form
    5,416.68/8,125.06 = 1,521.12/x
  3. Step 3: Cross multiply
    5,416.68x = 8,125.06 × 1,521.12
  4. Step 4: Simplify right side
    5,416.68x = 12,359,191.27
  5. Step 5: Solve for x
    x = 12,359,191.27/5,416.68
  6. Step 6: Final answer
    x = 2,281.69

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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.