Home / 5,278.49-7,284.39-3,040.76

Finding the Fourth Proportional to 5,278.49, 7,284.39 and 3,040.76

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Solution

The fourth proportional to 5,278.49, 7,284.39 and 3,040.76 is: 4,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.49 : 7,284.39 = 3,040.76 : x
  2. Step 2: Convert to fraction form
    5,278.49/7,284.39 = 3,040.76/x
  3. Step 3: Cross multiply
    5,278.49x = 7,284.39 × 3,040.76
  4. Step 4: Simplify right side
    5,278.49x = 22,150,081.74
  5. Step 5: Solve for x
    x = 22,150,081.74/5,278.49
  6. Step 6: Final answer
    x = 4,196.29

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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.