Home / 2,909.20-4,015.56-2,319.52

Finding the Fourth Proportional to 2,909.20, 4,015.56 and 2,319.52

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Solution

The fourth proportional to 2,909.20, 4,015.56 and 2,319.52 is: 3,201.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.20 : 4,015.56 = 2,319.52 : x
  2. Step 2: Convert to fraction form
    2,909.20/4,015.56 = 2,319.52/x
  3. Step 3: Cross multiply
    2,909.20x = 4,015.56 × 2,319.52
  4. Step 4: Simplify right side
    2,909.20x = 9,314,171.73
  5. Step 5: Solve for x
    x = 9,314,171.73/2,909.20
  6. Step 6: Final answer
    x = 3,201.63

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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.