Home / 4,079.86-5,631.11-2,312.44

Finding the Fourth Proportional to 4,079.86, 5,631.11 and 2,312.44

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Solution

The fourth proportional to 4,079.86, 5,631.11 and 2,312.44 is: 3,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.86 : 5,631.11 = 2,312.44 : x
  2. Step 2: Convert to fraction form
    4,079.86/5,631.11 = 2,312.44/x
  3. Step 3: Cross multiply
    4,079.86x = 5,631.11 × 2,312.44
  4. Step 4: Simplify right side
    4,079.86x = 13,021,587.04
  5. Step 5: Solve for x
    x = 13,021,587.04/4,079.86
  6. Step 6: Final answer
    x = 3,191.68

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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.