Home / 7,840.38-11,758.74-2,292.55

Finding the Fourth Proportional to 7,840.38, 11,758.74 and 2,292.55

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Solution

The fourth proportional to 7,840.38, 11,758.74 and 2,292.55 is: 3,438.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.38 : 11,758.74 = 2,292.55 : x
  2. Step 2: Convert to fraction form
    7,840.38/11,758.74 = 2,292.55/x
  3. Step 3: Cross multiply
    7,840.38x = 11,758.74 × 2,292.55
  4. Step 4: Simplify right side
    7,840.38x = 26,957,499.39
  5. Step 5: Solve for x
    x = 26,957,499.39/7,840.38
  6. Step 6: Final answer
    x = 3,438.29

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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.