Home / 5,400.72-7,454.02-3,042.86

Finding the Fourth Proportional to 5,400.72, 7,454.02 and 3,042.86

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Solution

The fourth proportional to 5,400.72, 7,454.02 and 3,042.86 is: 4,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.72 : 7,454.02 = 3,042.86 : x
  2. Step 2: Convert to fraction form
    5,400.72/7,454.02 = 3,042.86/x
  3. Step 3: Cross multiply
    5,400.72x = 7,454.02 × 3,042.86
  4. Step 4: Simplify right side
    5,400.72x = 22,681,539.30
  5. Step 5: Solve for x
    x = 22,681,539.30/5,400.72
  6. Step 6: Final answer
    x = 4,199.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.