Home / 5,778-8,665.92-2,851.20

Finding the Fourth Proportional to 5,778, 8,665.92 and 2,851.20

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Solution

The fourth proportional to 5,778, 8,665.92 and 2,851.20 is: 4,276.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778 : 8,665.92 = 2,851.20 : x
  2. Step 2: Convert to fraction form
    5,778/8,665.92 = 2,851.20/x
  3. Step 3: Cross multiply
    5,778x = 8,665.92 × 2,851.20
  4. Step 4: Simplify right side
    5,778x = 24,708,271.10
  5. Step 5: Solve for x
    x = 24,708,271.10/5,778
  6. Step 6: Final answer
    x = 4,276.27

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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.