Home / 2,785.18-4,176.60-1,141.30

Finding the Fourth Proportional to 2,785.18, 4,176.60 and 1,141.30

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Solution

The fourth proportional to 2,785.18, 4,176.60 and 1,141.30 is: 1,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.18 : 4,176.60 = 1,141.30 : x
  2. Step 2: Convert to fraction form
    2,785.18/4,176.60 = 1,141.30/x
  3. Step 3: Cross multiply
    2,785.18x = 4,176.60 × 1,141.30
  4. Step 4: Simplify right side
    2,785.18x = 4,766,753.58
  5. Step 5: Solve for x
    x = 4,766,753.58/2,785.18
  6. Step 6: Final answer
    x = 1,711.47

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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.