Home / 7,938.54-11,909.52-2,391.93

Finding the Fourth Proportional to 7,938.54, 11,909.52 and 2,391.93

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Solution

The fourth proportional to 7,938.54, 11,909.52 and 2,391.93 is: 3,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.54 : 11,909.52 = 2,391.93 : x
  2. Step 2: Convert to fraction form
    7,938.54/11,909.52 = 2,391.93/x
  3. Step 3: Cross multiply
    7,938.54x = 11,909.52 × 2,391.93
  4. Step 4: Simplify right side
    7,938.54x = 28,486,738.17
  5. Step 5: Solve for x
    x = 28,486,738.17/7,938.54
  6. Step 6: Final answer
    x = 3,588.41

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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.