Home / 5,077.58-7,007.21-2,839.55

Finding the Fourth Proportional to 5,077.58, 7,007.21 and 2,839.55

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Solution

The fourth proportional to 5,077.58, 7,007.21 and 2,839.55 is: 3,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.58 : 7,007.21 = 2,839.55 : x
  2. Step 2: Convert to fraction form
    5,077.58/7,007.21 = 2,839.55/x
  3. Step 3: Cross multiply
    5,077.58x = 7,007.21 × 2,839.55
  4. Step 4: Simplify right side
    5,077.58x = 19,897,273.92
  5. Step 5: Solve for x
    x = 19,897,273.92/5,077.58
  6. Step 6: Final answer
    x = 3,918.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.