Home / 5,403.71-8,104.35-2,479.21

Finding the Fourth Proportional to 5,403.71, 8,104.35 and 2,479.21

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Solution

The fourth proportional to 5,403.71, 8,104.35 and 2,479.21 is: 3,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.71 : 8,104.35 = 2,479.21 : x
  2. Step 2: Convert to fraction form
    5,403.71/8,104.35 = 2,479.21/x
  3. Step 3: Cross multiply
    5,403.71x = 8,104.35 × 2,479.21
  4. Step 4: Simplify right side
    5,403.71x = 20,092,374.60
  5. Step 5: Solve for x
    x = 20,092,374.60/5,403.71
  6. Step 6: Final answer
    x = 3,718.25

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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.