Home / 5,439.40-8,162.17-2,319.07

Finding the Fourth Proportional to 5,439.40, 8,162.17 and 2,319.07

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Solution

The fourth proportional to 5,439.40, 8,162.17 and 2,319.07 is: 3,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.40 : 8,162.17 = 2,319.07 : x
  2. Step 2: Convert to fraction form
    5,439.40/8,162.17 = 2,319.07/x
  3. Step 3: Cross multiply
    5,439.40x = 8,162.17 × 2,319.07
  4. Step 4: Simplify right side
    5,439.40x = 18,928,643.58
  5. Step 5: Solve for x
    x = 18,928,643.58/5,439.40
  6. Step 6: Final answer
    x = 3,479.91

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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.