Home / 5,685.40-8,524.12-2,521.11

Finding the Fourth Proportional to 5,685.40, 8,524.12 and 2,521.11

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Solution

The fourth proportional to 5,685.40, 8,524.12 and 2,521.11 is: 3,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.40 : 8,524.12 = 2,521.11 : x
  2. Step 2: Convert to fraction form
    5,685.40/8,524.12 = 2,521.11/x
  3. Step 3: Cross multiply
    5,685.40x = 8,524.12 × 2,521.11
  4. Step 4: Simplify right side
    5,685.40x = 21,490,231.57
  5. Step 5: Solve for x
    x = 21,490,231.57/5,685.40
  6. Step 6: Final answer
    x = 3,779.90

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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.