Home / 6,212.88-8,574.12-4,115.52

Finding the Fourth Proportional to 6,212.88, 8,574.12 and 4,115.52

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Solution

The fourth proportional to 6,212.88, 8,574.12 and 4,115.52 is: 5,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.88 : 8,574.12 = 4,115.52 : x
  2. Step 2: Convert to fraction form
    6,212.88/8,574.12 = 4,115.52/x
  3. Step 3: Cross multiply
    6,212.88x = 8,574.12 × 4,115.52
  4. Step 4: Simplify right side
    6,212.88x = 35,286,962.34
  5. Step 5: Solve for x
    x = 35,286,962.34/6,212.88
  6. Step 6: Final answer
    x = 5,679.65

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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.