Home / 3,439.32-5,158.12-2,820.48

Finding the Fourth Proportional to 3,439.32, 5,158.12 and 2,820.48

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Solution

The fourth proportional to 3,439.32, 5,158.12 and 2,820.48 is: 4,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.32 : 5,158.12 = 2,820.48 : x
  2. Step 2: Convert to fraction form
    3,439.32/5,158.12 = 2,820.48/x
  3. Step 3: Cross multiply
    3,439.32x = 5,158.12 × 2,820.48
  4. Step 4: Simplify right side
    3,439.32x = 14,548,374.30
  5. Step 5: Solve for x
    x = 14,548,374.30/3,439.32
  6. Step 6: Final answer
    x = 4,230.01

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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.