Home / 5,278.36-7,284.89-3,040.01

Finding the Fourth Proportional to 5,278.36, 7,284.89 and 3,040.01

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Solution

The fourth proportional to 5,278.36, 7,284.89 and 3,040.01 is: 4,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.36 : 7,284.89 = 3,040.01 : x
  2. Step 2: Convert to fraction form
    5,278.36/7,284.89 = 3,040.01/x
  3. Step 3: Cross multiply
    5,278.36x = 7,284.89 × 3,040.01
  4. Step 4: Simplify right side
    5,278.36x = 22,146,138.45
  5. Step 5: Solve for x
    x = 22,146,138.45/5,278.36
  6. Step 6: Final answer
    x = 4,195.65

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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.