Home / 7,780.18-10,736.93-4,422.88

Finding the Fourth Proportional to 7,780.18, 10,736.93 and 4,422.88

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Solution

The fourth proportional to 7,780.18, 10,736.93 and 4,422.88 is: 6,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.18 : 10,736.93 = 4,422.88 : x
  2. Step 2: Convert to fraction form
    7,780.18/10,736.93 = 4,422.88/x
  3. Step 3: Cross multiply
    7,780.18x = 10,736.93 × 4,422.88
  4. Step 4: Simplify right side
    7,780.18x = 47,488,152.96
  5. Step 5: Solve for x
    x = 47,488,152.96/7,780.18
  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.