Home / 5,079.36-7,009.46-2,841.20

Finding the Fourth Proportional to 5,079.36, 7,009.46 and 2,841.20

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Solution

The fourth proportional to 5,079.36, 7,009.46 and 2,841.20 is: 3,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.36 : 7,009.46 = 2,841.20 : x
  2. Step 2: Convert to fraction form
    5,079.36/7,009.46 = 2,841.20/x
  3. Step 3: Cross multiply
    5,079.36x = 7,009.46 × 2,841.20
  4. Step 4: Simplify right side
    5,079.36x = 19,915,277.75
  5. Step 5: Solve for x
    x = 19,915,277.75/5,079.36
  6. Step 6: Final answer
    x = 3,920.82

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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.