Home / 5,380.56-8,069.76-1,485.18

Finding the Fourth Proportional to 5,380.56, 8,069.76 and 1,485.18

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Solution

The fourth proportional to 5,380.56, 8,069.76 and 1,485.18 is: 2,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.56 : 8,069.76 = 1,485.18 : x
  2. Step 2: Convert to fraction form
    5,380.56/8,069.76 = 1,485.18/x
  3. Step 3: Cross multiply
    5,380.56x = 8,069.76 × 1,485.18
  4. Step 4: Simplify right side
    5,380.56x = 11,985,046.16
  5. Step 5: Solve for x
    x = 11,985,046.16/5,380.56
  6. Step 6: Final answer
    x = 2,227.47

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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.