Home / 5,718.24-8,575.80-2,431.20

Finding the Fourth Proportional to 5,718.24, 8,575.80 and 2,431.20

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Solution

The fourth proportional to 5,718.24, 8,575.80 and 2,431.20 is: 3,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.24 : 8,575.80 = 2,431.20 : x
  2. Step 2: Convert to fraction form
    5,718.24/8,575.80 = 2,431.20/x
  3. Step 3: Cross multiply
    5,718.24x = 8,575.80 × 2,431.20
  4. Step 4: Simplify right side
    5,718.24x = 20,849,484.96
  5. Step 5: Solve for x
    x = 20,849,484.96/5,718.24
  6. Step 6: Final answer
    x = 3,646.14

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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.