Home / 3,114.47-4,298.47-1,787.92

Finding the Fourth Proportional to 3,114.47, 4,298.47 and 1,787.92

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Solution

The fourth proportional to 3,114.47, 4,298.47 and 1,787.92 is: 2,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.47 : 4,298.47 = 1,787.92 : x
  2. Step 2: Convert to fraction form
    3,114.47/4,298.47 = 1,787.92/x
  3. Step 3: Cross multiply
    3,114.47x = 4,298.47 × 1,787.92
  4. Step 4: Simplify right side
    3,114.47x = 7,685,305.27
  5. Step 5: Solve for x
    x = 7,685,305.27/3,114.47
  6. Step 6: Final answer
    x = 2,467.61

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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.