Home / 5,149.76-7,725.23-1,864.40

Finding the Fourth Proportional to 5,149.76, 7,725.23 and 1,864.40

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Solution

The fourth proportional to 5,149.76, 7,725.23 and 1,864.40 is: 2,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.76 : 7,725.23 = 1,864.40 : x
  2. Step 2: Convert to fraction form
    5,149.76/7,725.23 = 1,864.40/x
  3. Step 3: Cross multiply
    5,149.76x = 7,725.23 × 1,864.40
  4. Step 4: Simplify right side
    5,149.76x = 14,402,884.85
  5. Step 5: Solve for x
    x = 14,402,884.85/5,149.76
  6. Step 6: Final answer
    x = 2,796.81

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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.