Home / 5,257.13-7,888.46-2,660.13

Finding the Fourth Proportional to 5,257.13, 7,888.46 and 2,660.13

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Solution

The fourth proportional to 5,257.13, 7,888.46 and 2,660.13 is: 3,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.13 : 7,888.46 = 2,660.13 : x
  2. Step 2: Convert to fraction form
    5,257.13/7,888.46 = 2,660.13/x
  3. Step 3: Cross multiply
    5,257.13x = 7,888.46 × 2,660.13
  4. Step 4: Simplify right side
    5,257.13x = 20,984,315.80
  5. Step 5: Solve for x
    x = 20,984,315.80/5,257.13
  6. Step 6: Final answer
    x = 3,991.60

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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.