Home / 7,865.55-11,787.84-2,930.22

Finding the Fourth Proportional to 7,865.55, 11,787.84 and 2,930.22

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Solution

The fourth proportional to 7,865.55, 11,787.84 and 2,930.22 is: 4,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.55 : 11,787.84 = 2,930.22 : x
  2. Step 2: Convert to fraction form
    7,865.55/11,787.84 = 2,930.22/x
  3. Step 3: Cross multiply
    7,865.55x = 11,787.84 × 2,930.22
  4. Step 4: Simplify right side
    7,865.55x = 34,540,964.52
  5. Step 5: Solve for x
    x = 34,540,964.52/7,865.55
  6. Step 6: Final answer
    x = 4,391.42

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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.