Home / 5,480.42-8,221.84-2,557.13

Finding the Fourth Proportional to 5,480.42, 8,221.84 and 2,557.13

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Solution

The fourth proportional to 5,480.42, 8,221.84 and 2,557.13 is: 3,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.42 : 8,221.84 = 2,557.13 : x
  2. Step 2: Convert to fraction form
    5,480.42/8,221.84 = 2,557.13/x
  3. Step 3: Cross multiply
    5,480.42x = 8,221.84 × 2,557.13
  4. Step 4: Simplify right side
    5,480.42x = 21,024,266.22
  5. Step 5: Solve for x
    x = 21,024,266.22/5,480.42
  6. Step 6: Final answer
    x = 3,836.25

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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.