Home / 3,180.95-4,773.65-2,142.93

Finding the Fourth Proportional to 3,180.95, 4,773.65 and 2,142.93

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Solution

The fourth proportional to 3,180.95, 4,773.65 and 2,142.93 is: 3,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.95 : 4,773.65 = 2,142.93 : x
  2. Step 2: Convert to fraction form
    3,180.95/4,773.65 = 2,142.93/x
  3. Step 3: Cross multiply
    3,180.95x = 4,773.65 × 2,142.93
  4. Step 4: Simplify right side
    3,180.95x = 10,229,587.08
  5. Step 5: Solve for x
    x = 10,229,587.08/3,180.95
  6. Step 6: Final answer
    x = 3,215.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.