Home / 7,074.05-10,612.85-2,689.11

Finding the Fourth Proportional to 7,074.05, 10,612.85 and 2,689.11

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Solution

The fourth proportional to 7,074.05, 10,612.85 and 2,689.11 is: 4,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.05 : 10,612.85 = 2,689.11 : x
  2. Step 2: Convert to fraction form
    7,074.05/10,612.85 = 2,689.11/x
  3. Step 3: Cross multiply
    7,074.05x = 10,612.85 × 2,689.11
  4. Step 4: Simplify right side
    7,074.05x = 28,539,107.62
  5. Step 5: Solve for x
    x = 28,539,107.62/7,074.05
  6. Step 6: Final answer
    x = 4,034.34

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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.