Home / 4,079.76-5,630.16-2,311.74

Finding the Fourth Proportional to 4,079.76, 5,630.16 and 2,311.74

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Solution

The fourth proportional to 4,079.76, 5,630.16 and 2,311.74 is: 3,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.76 : 5,630.16 = 2,311.74 : x
  2. Step 2: Convert to fraction form
    4,079.76/5,630.16 = 2,311.74/x
  3. Step 3: Cross multiply
    4,079.76x = 5,630.16 × 2,311.74
  4. Step 4: Simplify right side
    4,079.76x = 13,015,466.08
  5. Step 5: Solve for x
    x = 13,015,466.08/4,079.76
  6. Step 6: Final answer
    x = 3,190.25

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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.