Home / 7,240.77-9,992.31-4,097.58

Finding the Fourth Proportional to 7,240.77, 9,992.31 and 4,097.58

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Solution

The fourth proportional to 7,240.77, 9,992.31 and 4,097.58 is: 5,654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.77 : 9,992.31 = 4,097.58 : x
  2. Step 2: Convert to fraction form
    7,240.77/9,992.31 = 4,097.58/x
  3. Step 3: Cross multiply
    7,240.77x = 9,992.31 × 4,097.58
  4. Step 4: Simplify right side
    7,240.77x = 40,944,289.61
  5. Step 5: Solve for x
    x = 40,944,289.61/7,240.77
  6. Step 6: Final answer
    x = 5,654.69

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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.