Home / 5,439.88-8,148.42-3,482.20

Finding the Fourth Proportional to 5,439.88, 8,148.42 and 3,482.20

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Solution

The fourth proportional to 5,439.88, 8,148.42 and 3,482.20 is: 5,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.88 : 8,148.42 = 3,482.20 : x
  2. Step 2: Convert to fraction form
    5,439.88/8,148.42 = 3,482.20/x
  3. Step 3: Cross multiply
    5,439.88x = 8,148.42 × 3,482.20
  4. Step 4: Simplify right side
    5,439.88x = 28,374,428.12
  5. Step 5: Solve for x
    x = 28,374,428.12/5,439.88
  6. Step 6: Final answer
    x = 5,216.00

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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.