Home / 7,750.38-11,621.94-2,816.58

Finding the Fourth Proportional to 7,750.38, 11,621.94 and 2,816.58

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Solution

The fourth proportional to 7,750.38, 11,621.94 and 2,816.58 is: 4,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.38 : 11,621.94 = 2,816.58 : x
  2. Step 2: Convert to fraction form
    7,750.38/11,621.94 = 2,816.58/x
  3. Step 3: Cross multiply
    7,750.38x = 11,621.94 × 2,816.58
  4. Step 4: Simplify right side
    7,750.38x = 32,734,123.77
  5. Step 5: Solve for x
    x = 32,734,123.77/7,750.38
  6. Step 6: Final answer
    x = 4,223.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.