Home / 3,119.95-4,666.15-2,775.70

Finding the Fourth Proportional to 3,119.95, 4,666.15 and 2,775.70

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Solution

The fourth proportional to 3,119.95, 4,666.15 and 2,775.70 is: 4,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.95 : 4,666.15 = 2,775.70 : x
  2. Step 2: Convert to fraction form
    3,119.95/4,666.15 = 2,775.70/x
  3. Step 3: Cross multiply
    3,119.95x = 4,666.15 × 2,775.70
  4. Step 4: Simplify right side
    3,119.95x = 12,951,832.56
  5. Step 5: Solve for x
    x = 12,951,832.56/3,119.95
  6. Step 6: Final answer
    x = 4,151.29

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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.