Home / 2,917.92-4,377.76-1,685.04

Finding the Fourth Proportional to 2,917.92, 4,377.76 and 1,685.04

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Solution

The fourth proportional to 2,917.92, 4,377.76 and 1,685.04 is: 2,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.92 : 4,377.76 = 1,685.04 : x
  2. Step 2: Convert to fraction form
    2,917.92/4,377.76 = 1,685.04/x
  3. Step 3: Cross multiply
    2,917.92x = 4,377.76 × 1,685.04
  4. Step 4: Simplify right side
    2,917.92x = 7,376,700.71
  5. Step 5: Solve for x
    x = 7,376,700.71/2,917.92
  6. Step 6: Final answer
    x = 2,528.07

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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.