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Finding the Fourth Proportional to 5,311.12, 7,310.10 and 4,881.01

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Solution

The fourth proportional to 5,311.12, 7,310.10 and 4,881.01 is: 6,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.12 : 7,310.10 = 4,881.01 : x
  2. Step 2: Convert to fraction form
    5,311.12/7,310.10 = 4,881.01/x
  3. Step 3: Cross multiply
    5,311.12x = 7,310.10 × 4,881.01
  4. Step 4: Simplify right side
    5,311.12x = 35,680,671.20
  5. Step 5: Solve for x
    x = 35,680,671.20/5,311.12
  6. Step 6: Final answer
    x = 6,718.11

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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.