Home / 7,540.50-11,315.93-3,385.15

Finding the Fourth Proportional to 7,540.50, 11,315.93 and 3,385.15

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Solution

The fourth proportional to 7,540.50, 11,315.93 and 3,385.15 is: 5,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.50 : 11,315.93 = 3,385.15 : x
  2. Step 2: Convert to fraction form
    7,540.50/11,315.93 = 3,385.15/x
  3. Step 3: Cross multiply
    7,540.50x = 11,315.93 × 3,385.15
  4. Step 4: Simplify right side
    7,540.50x = 38,306,120.44
  5. Step 5: Solve for x
    x = 38,306,120.44/7,540.50
  6. Step 6: Final answer
    x = 5,080.05

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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.