Home / 5,247.14-7,870.66-2,127.10

Finding the Fourth Proportional to 5,247.14, 7,870.66 and 2,127.10

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Solution

The fourth proportional to 5,247.14, 7,870.66 and 2,127.10 is: 3,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.14 : 7,870.66 = 2,127.10 : x
  2. Step 2: Convert to fraction form
    5,247.14/7,870.66 = 2,127.10/x
  3. Step 3: Cross multiply
    5,247.14x = 7,870.66 × 2,127.10
  4. Step 4: Simplify right side
    5,247.14x = 16,741,680.89
  5. Step 5: Solve for x
    x = 16,741,680.89/5,247.14
  6. Step 6: Final answer
    x = 3,190.63

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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.