Home / 5,176.97-7,756.95-2,987.54

Finding the Fourth Proportional to 5,176.97, 7,756.95 and 2,987.54

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Solution

The fourth proportional to 5,176.97, 7,756.95 and 2,987.54 is: 4,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.97 : 7,756.95 = 2,987.54 : x
  2. Step 2: Convert to fraction form
    5,176.97/7,756.95 = 2,987.54/x
  3. Step 3: Cross multiply
    5,176.97x = 7,756.95 × 2,987.54
  4. Step 4: Simplify right side
    5,176.97x = 23,174,198.40
  5. Step 5: Solve for x
    x = 23,174,198.40/5,176.97
  6. Step 6: Final answer
    x = 4,476.40

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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.