Home / 3,439.92-4,743.96-2,909.91

Finding the Fourth Proportional to 3,439.92, 4,743.96 and 2,909.91

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Solution

The fourth proportional to 3,439.92, 4,743.96 and 2,909.91 is: 4,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.92 : 4,743.96 = 2,909.91 : x
  2. Step 2: Convert to fraction form
    3,439.92/4,743.96 = 2,909.91/x
  3. Step 3: Cross multiply
    3,439.92x = 4,743.96 × 2,909.91
  4. Step 4: Simplify right side
    3,439.92x = 13,804,496.64
  5. Step 5: Solve for x
    x = 13,804,496.64/3,439.92
  6. Step 6: Final answer
    x = 4,013.03

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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.