Home / 3,440.29-4,747.47-1,947.91

Finding the Fourth Proportional to 3,440.29, 4,747.47 and 1,947.91

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Solution

The fourth proportional to 3,440.29, 4,747.47 and 1,947.91 is: 2,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.29 : 4,747.47 = 1,947.91 : x
  2. Step 2: Convert to fraction form
    3,440.29/4,747.47 = 1,947.91/x
  3. Step 3: Cross multiply
    3,440.29x = 4,747.47 × 1,947.91
  4. Step 4: Simplify right side
    3,440.29x = 9,247,644.29
  5. Step 5: Solve for x
    x = 9,247,644.29/3,440.29
  6. Step 6: Final answer
    x = 2,688.04

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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.