Home / 7,440.20-10,268.85-4,455.42

Finding the Fourth Proportional to 7,440.20, 10,268.85 and 4,455.42

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Solution

The fourth proportional to 7,440.20, 10,268.85 and 4,455.42 is: 6,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.20 : 10,268.85 = 4,455.42 : x
  2. Step 2: Convert to fraction form
    7,440.20/10,268.85 = 4,455.42/x
  3. Step 3: Cross multiply
    7,440.20x = 10,268.85 × 4,455.42
  4. Step 4: Simplify right side
    7,440.20x = 45,752,039.67
  5. Step 5: Solve for x
    x = 45,752,039.67/7,440.20
  6. Step 6: Final answer
    x = 6,149.30

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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.