Home / 7,748.13-10,691.09-4,390.25

Finding the Fourth Proportional to 7,748.13, 10,691.09 and 4,390.25

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Solution

The fourth proportional to 7,748.13, 10,691.09 and 4,390.25 is: 6,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.13 : 10,691.09 = 4,390.25 : x
  2. Step 2: Convert to fraction form
    7,748.13/10,691.09 = 4,390.25/x
  3. Step 3: Cross multiply
    7,748.13x = 10,691.09 × 4,390.25
  4. Step 4: Simplify right side
    7,748.13x = 46,936,504.42
  5. Step 5: Solve for x
    x = 46,936,504.42/7,748.13
  6. Step 6: Final answer
    x = 6,057.79

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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.