Home / 3,170.12-4,374.98-1,772.88

Finding the Fourth Proportional to 3,170.12, 4,374.98 and 1,772.88

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Solution

The fourth proportional to 3,170.12, 4,374.98 and 1,772.88 is: 2,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.12 : 4,374.98 = 1,772.88 : x
  2. Step 2: Convert to fraction form
    3,170.12/4,374.98 = 1,772.88/x
  3. Step 3: Cross multiply
    3,170.12x = 4,374.98 × 1,772.88
  4. Step 4: Simplify right side
    3,170.12x = 7,756,314.54
  5. Step 5: Solve for x
    x = 7,756,314.54/3,170.12
  6. Step 6: Final answer
    x = 2,446.69

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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.