Home / 5,240.20-7,231.88-3,002.77

Finding the Fourth Proportional to 5,240.20, 7,231.88 and 3,002.77

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Solution

The fourth proportional to 5,240.20, 7,231.88 and 3,002.77 is: 4,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.20 : 7,231.88 = 3,002.77 : x
  2. Step 2: Convert to fraction form
    5,240.20/7,231.88 = 3,002.77/x
  3. Step 3: Cross multiply
    5,240.20x = 7,231.88 × 3,002.77
  4. Step 4: Simplify right side
    5,240.20x = 21,715,672.31
  5. Step 5: Solve for x
    x = 21,715,672.31/5,240.20
  6. Step 6: Final answer
    x = 4,144.05

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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.