Home / 5,143.85-7,098.46-3,019.42

Finding the Fourth Proportional to 5,143.85, 7,098.46 and 3,019.42

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Solution

The fourth proportional to 5,143.85, 7,098.46 and 3,019.42 is: 4,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.85 : 7,098.46 = 3,019.42 : x
  2. Step 2: Convert to fraction form
    5,143.85/7,098.46 = 3,019.42/x
  3. Step 3: Cross multiply
    5,143.85x = 7,098.46 × 3,019.42
  4. Step 4: Simplify right side
    5,143.85x = 21,433,206.80
  5. Step 5: Solve for x
    x = 21,433,206.80/5,143.85
  6. Step 6: Final answer
    x = 4,166.77

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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.