Home / 5,077.79-7,006.68-2,839.58

Finding the Fourth Proportional to 5,077.79, 7,006.68 and 2,839.58

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Solution

The fourth proportional to 5,077.79, 7,006.68 and 2,839.58 is: 3,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.79 : 7,006.68 = 2,839.58 : x
  2. Step 2: Convert to fraction form
    5,077.79/7,006.68 = 2,839.58/x
  3. Step 3: Cross multiply
    5,077.79x = 7,006.68 × 2,839.58
  4. Step 4: Simplify right side
    5,077.79x = 19,896,028.39
  5. Step 5: Solve for x
    x = 19,896,028.39/5,077.79
  6. Step 6: Final answer
    x = 3,918.25

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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.