Home / 5,257.71-7,885.62-3,280.23

Finding the Fourth Proportional to 5,257.71, 7,885.62 and 3,280.23

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Solution

The fourth proportional to 5,257.71, 7,885.62 and 3,280.23 is: 4,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.71 : 7,885.62 = 3,280.23 : x
  2. Step 2: Convert to fraction form
    5,257.71/7,885.62 = 3,280.23/x
  3. Step 3: Cross multiply
    5,257.71x = 7,885.62 × 3,280.23
  4. Step 4: Simplify right side
    5,257.71x = 25,866,647.29
  5. Step 5: Solve for x
    x = 25,866,647.29/5,257.71
  6. Step 6: Final answer
    x = 4,919.76

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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.