Home / 5,708.24-8,560.80-2,421.20

Finding the Fourth Proportional to 5,708.24, 8,560.80 and 2,421.20

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Solution

The fourth proportional to 5,708.24, 8,560.80 and 2,421.20 is: 3,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.24 : 8,560.80 = 2,421.20 : x
  2. Step 2: Convert to fraction form
    5,708.24/8,560.80 = 2,421.20/x
  3. Step 3: Cross multiply
    5,708.24x = 8,560.80 × 2,421.20
  4. Step 4: Simplify right side
    5,708.24x = 20,727,408.96
  5. Step 5: Solve for x
    x = 20,727,408.96/5,708.24
  6. Step 6: Final answer
    x = 3,631.14

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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.