Home / 2,340.71-3,512.61-1,245.86

Finding the Fourth Proportional to 2,340.71, 3,512.61 and 1,245.86

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Solution

The fourth proportional to 2,340.71, 3,512.61 and 1,245.86 is: 1,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.71 : 3,512.61 = 1,245.86 : x
  2. Step 2: Convert to fraction form
    2,340.71/3,512.61 = 1,245.86/x
  3. Step 3: Cross multiply
    2,340.71x = 3,512.61 × 1,245.86
  4. Step 4: Simplify right side
    2,340.71x = 4,376,220.29
  5. Step 5: Solve for x
    x = 4,376,220.29/2,340.71
  6. Step 6: Final answer
    x = 1,869.61

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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.