Home / 5,143.57-7,098.04-2,874.96

Finding the Fourth Proportional to 5,143.57, 7,098.04 and 2,874.96

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Solution

The fourth proportional to 5,143.57, 7,098.04 and 2,874.96 is: 3,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.57 : 7,098.04 = 2,874.96 : x
  2. Step 2: Convert to fraction form
    5,143.57/7,098.04 = 2,874.96/x
  3. Step 3: Cross multiply
    5,143.57x = 7,098.04 × 2,874.96
  4. Step 4: Simplify right side
    5,143.57x = 20,406,570.52
  5. Step 5: Solve for x
    x = 20,406,570.52/5,143.57
  6. Step 6: Final answer
    x = 3,967.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.