Home / 7,812.18-10,780.79-4,408.97

Finding the Fourth Proportional to 7,812.18, 10,780.79 and 4,408.97

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Solution

The fourth proportional to 7,812.18, 10,780.79 and 4,408.97 is: 6,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.18 : 10,780.79 = 4,408.97 : x
  2. Step 2: Convert to fraction form
    7,812.18/10,780.79 = 4,408.97/x
  3. Step 3: Cross multiply
    7,812.18x = 10,780.79 × 4,408.97
  4. Step 4: Simplify right side
    7,812.18x = 47,532,103.74
  5. Step 5: Solve for x
    x = 47,532,103.74/7,812.18
  6. Step 6: Final answer
    x = 6,084.36

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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.