Home / 5,178.16-7,143.46-3,500.65

Finding the Fourth Proportional to 5,178.16, 7,143.46 and 3,500.65

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Solution

The fourth proportional to 5,178.16, 7,143.46 and 3,500.65 is: 4,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.16 : 7,143.46 = 3,500.65 : x
  2. Step 2: Convert to fraction form
    5,178.16/7,143.46 = 3,500.65/x
  3. Step 3: Cross multiply
    5,178.16x = 7,143.46 × 3,500.65
  4. Step 4: Simplify right side
    5,178.16x = 25,006,753.25
  5. Step 5: Solve for x
    x = 25,006,753.25/5,178.16
  6. Step 6: Final answer
    x = 4,829.27

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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.