Home / 3,990.42-5,984.86-2,345.04

Finding the Fourth Proportional to 3,990.42, 5,984.86 and 2,345.04

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Solution

The fourth proportional to 3,990.42, 5,984.86 and 2,345.04 is: 3,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.42 : 5,984.86 = 2,345.04 : x
  2. Step 2: Convert to fraction form
    3,990.42/5,984.86 = 2,345.04/x
  3. Step 3: Cross multiply
    3,990.42x = 5,984.86 × 2,345.04
  4. Step 4: Simplify right side
    3,990.42x = 14,034,770.68
  5. Step 5: Solve for x
    x = 14,034,770.68/3,990.42
  6. Step 6: Final answer
    x = 3,517.12

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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.