Home / 5,077.85-7,007.56-2,839.68

Finding the Fourth Proportional to 5,077.85, 7,007.56 and 2,839.68

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Solution

The fourth proportional to 5,077.85, 7,007.56 and 2,839.68 is: 3,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.85 : 7,007.56 = 2,839.68 : x
  2. Step 2: Convert to fraction form
    5,077.85/7,007.56 = 2,839.68/x
  3. Step 3: Cross multiply
    5,077.85x = 7,007.56 × 2,839.68
  4. Step 4: Simplify right side
    5,077.85x = 19,899,220.88
  5. Step 5: Solve for x
    x = 19,899,220.88/5,077.85
  6. Step 6: Final answer
    x = 3,918.83

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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.