Home / 3,437.84-4,742.48-2,176.78

Finding the Fourth Proportional to 3,437.84, 4,742.48 and 2,176.78

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Solution

The fourth proportional to 3,437.84, 4,742.48 and 2,176.78 is: 3,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.84 : 4,742.48 = 2,176.78 : x
  2. Step 2: Convert to fraction form
    3,437.84/4,742.48 = 2,176.78/x
  3. Step 3: Cross multiply
    3,437.84x = 4,742.48 × 2,176.78
  4. Step 4: Simplify right side
    3,437.84x = 10,323,335.61
  5. Step 5: Solve for x
    x = 10,323,335.61/3,437.84
  6. Step 6: Final answer
    x = 3,002.86

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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.