Home / 6,449.12-8,896.56-4,087.52

Finding the Fourth Proportional to 6,449.12, 8,896.56 and 4,087.52

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Solution

The fourth proportional to 6,449.12, 8,896.56 and 4,087.52 is: 5,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.12 : 8,896.56 = 4,087.52 : x
  2. Step 2: Convert to fraction form
    6,449.12/8,896.56 = 4,087.52/x
  3. Step 3: Cross multiply
    6,449.12x = 8,896.56 × 4,087.52
  4. Step 4: Simplify right side
    6,449.12x = 36,364,866.93
  5. Step 5: Solve for x
    x = 36,364,866.93/6,449.12
  6. Step 6: Final answer
    x = 5,638.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.