Home / 4,353.80-6,009.61-2,781.90

Finding the Fourth Proportional to 4,353.80, 6,009.61 and 2,781.90

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Solution

The fourth proportional to 4,353.80, 6,009.61 and 2,781.90 is: 3,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,353.80 : 6,009.61 = 2,781.90 : x
  2. Step 2: Convert to fraction form
    4,353.80/6,009.61 = 2,781.90/x
  3. Step 3: Cross multiply
    4,353.80x = 6,009.61 × 2,781.90
  4. Step 4: Simplify right side
    4,353.80x = 16,718,134.06
  5. Step 5: Solve for x
    x = 16,718,134.06/4,353.80
  6. Step 6: Final answer
    x = 3,839.89

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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.