Home / 4,079.87-5,630.11-2,312.05

Finding the Fourth Proportional to 4,079.87, 5,630.11 and 2,312.05

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Solution

The fourth proportional to 4,079.87, 5,630.11 and 2,312.05 is: 3,190.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.87 : 5,630.11 = 2,312.05 : x
  2. Step 2: Convert to fraction form
    4,079.87/5,630.11 = 2,312.05/x
  3. Step 3: Cross multiply
    4,079.87x = 5,630.11 × 2,312.05
  4. Step 4: Simplify right side
    4,079.87x = 13,017,056.11
  5. Step 5: Solve for x
    x = 13,017,056.11/4,079.87
  6. Step 6: Final answer
    x = 3,190.56

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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.