Home / 3,141.50-4,335.20-1,815.92

Finding the Fourth Proportional to 3,141.50, 4,335.20 and 1,815.92

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Solution

The fourth proportional to 3,141.50, 4,335.20 and 1,815.92 is: 2,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.50 : 4,335.20 = 1,815.92 : x
  2. Step 2: Convert to fraction form
    3,141.50/4,335.20 = 1,815.92/x
  3. Step 3: Cross multiply
    3,141.50x = 4,335.20 × 1,815.92
  4. Step 4: Simplify right side
    3,141.50x = 7,872,376.38
  5. Step 5: Solve for x
    x = 7,872,376.38/3,141.50
  6. Step 6: Final answer
    x = 2,505.93

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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.