Home / 5,618.80-8,425.77-4,321.18

Finding the Fourth Proportional to 5,618.80, 8,425.77 and 4,321.18

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Solution

The fourth proportional to 5,618.80, 8,425.77 and 4,321.18 is: 6,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.80 : 8,425.77 = 4,321.18 : x
  2. Step 2: Convert to fraction form
    5,618.80/8,425.77 = 4,321.18/x
  3. Step 3: Cross multiply
    5,618.80x = 8,425.77 × 4,321.18
  4. Step 4: Simplify right side
    5,618.80x = 36,409,268.81
  5. Step 5: Solve for x
    x = 36,409,268.81/5,618.80
  6. Step 6: Final answer
    x = 6,479.90

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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.