Home / 7,780.17-10,736.94-4,422.87

Finding the Fourth Proportional to 7,780.17, 10,736.94 and 4,422.87

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Solution

The fourth proportional to 7,780.17, 10,736.94 and 4,422.87 is: 6,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.17 : 10,736.94 = 4,422.87 : x
  2. Step 2: Convert to fraction form
    7,780.17/10,736.94 = 4,422.87/x
  3. Step 3: Cross multiply
    7,780.17x = 10,736.94 × 4,422.87
  4. Step 4: Simplify right side
    7,780.17x = 47,488,089.82
  5. Step 5: Solve for x
    x = 47,488,089.82/7,780.17
  6. Step 6: Final answer
    x = 6,103.73

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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.