Home / 7,780.25-10,737.65-4,423.56

Finding the Fourth Proportional to 7,780.25, 10,737.65 and 4,423.56

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Solution

The fourth proportional to 7,780.25, 10,737.65 and 4,423.56 is: 6,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.25 : 10,737.65 = 4,423.56 : x
  2. Step 2: Convert to fraction form
    7,780.25/10,737.65 = 4,423.56/x
  3. Step 3: Cross multiply
    7,780.25x = 10,737.65 × 4,423.56
  4. Step 4: Simplify right side
    7,780.25x = 47,498,616.92
  5. Step 5: Solve for x
    x = 47,498,616.92/7,780.25
  6. Step 6: Final answer
    x = 6,105.03

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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.