Home / 4,117.80-6,175.95-3,428.90

Finding the Fourth Proportional to 4,117.80, 6,175.95 and 3,428.90

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Solution

The fourth proportional to 4,117.80, 6,175.95 and 3,428.90 is: 5,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.80 : 6,175.95 = 3,428.90 : x
  2. Step 2: Convert to fraction form
    4,117.80/6,175.95 = 3,428.90/x
  3. Step 3: Cross multiply
    4,117.80x = 6,175.95 × 3,428.90
  4. Step 4: Simplify right side
    4,117.80x = 21,176,694.38
  5. Step 5: Solve for x
    x = 21,176,694.38/4,117.80
  6. Step 6: Final answer
    x = 5,142.72

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1.5x scale

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.