Home / 3,115.68-4,299.04-1,873.76

Finding the Fourth Proportional to 3,115.68, 4,299.04 and 1,873.76

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Solution

The fourth proportional to 3,115.68, 4,299.04 and 1,873.76 is: 2,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.68 : 4,299.04 = 1,873.76 : x
  2. Step 2: Convert to fraction form
    3,115.68/4,299.04 = 1,873.76/x
  3. Step 3: Cross multiply
    3,115.68x = 4,299.04 × 1,873.76
  4. Step 4: Simplify right side
    3,115.68x = 8,055,369.19
  5. Step 5: Solve for x
    x = 8,055,369.19/3,115.68
  6. Step 6: Final answer
    x = 2,585.43

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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.