Home / 3,439.72-5,159.85-1,359.58

Finding the Fourth Proportional to 3,439.72, 5,159.85 and 1,359.58

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Solution

The fourth proportional to 3,439.72, 5,159.85 and 1,359.58 is: 2,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.72 : 5,159.85 = 1,359.58 : x
  2. Step 2: Convert to fraction form
    3,439.72/5,159.85 = 1,359.58/x
  3. Step 3: Cross multiply
    3,439.72x = 5,159.85 × 1,359.58
  4. Step 4: Simplify right side
    3,439.72x = 7,015,228.86
  5. Step 5: Solve for x
    x = 7,015,228.86/3,439.72
  6. Step 6: Final answer
    x = 2,039.48

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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.