Home / 5,143.50-7,098.30-3,377.70

Finding the Fourth Proportional to 5,143.50, 7,098.30 and 3,377.70

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Solution

The fourth proportional to 5,143.50, 7,098.30 and 3,377.70 is: 4,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.50 : 7,098.30 = 3,377.70 : x
  2. Step 2: Convert to fraction form
    5,143.50/7,098.30 = 3,377.70/x
  3. Step 3: Cross multiply
    5,143.50x = 7,098.30 × 3,377.70
  4. Step 4: Simplify right side
    5,143.50x = 23,975,927.91
  5. Step 5: Solve for x
    x = 23,975,927.91/5,143.50
  6. Step 6: Final answer
    x = 4,661.40

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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.