Home / 2,685.86-4,023.68-2,098.10

Finding the Fourth Proportional to 2,685.86, 4,023.68 and 2,098.10

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Solution

The fourth proportional to 2,685.86, 4,023.68 and 2,098.10 is: 3,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.86 : 4,023.68 = 2,098.10 : x
  2. Step 2: Convert to fraction form
    2,685.86/4,023.68 = 2,098.10/x
  3. Step 3: Cross multiply
    2,685.86x = 4,023.68 × 2,098.10
  4. Step 4: Simplify right side
    2,685.86x = 8,442,082.58
  5. Step 5: Solve for x
    x = 8,442,082.58/2,685.86
  6. Step 6: Final answer
    x = 3,143.16

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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.