Home / 8,280.74-12,421.48-2,734.56

Finding the Fourth Proportional to 8,280.74, 12,421.48 and 2,734.56

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Solution

The fourth proportional to 8,280.74, 12,421.48 and 2,734.56 is: 4,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.74 : 12,421.48 = 2,734.56 : x
  2. Step 2: Convert to fraction form
    8,280.74/12,421.48 = 2,734.56/x
  3. Step 3: Cross multiply
    8,280.74x = 12,421.48 × 2,734.56
  4. Step 4: Simplify right side
    8,280.74x = 33,967,282.35
  5. Step 5: Solve for x
    x = 33,967,282.35/8,280.74
  6. Step 6: Final answer
    x = 4,101.96

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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.