Home / 5,278.56-7,283.52-3,512.72

Finding the Fourth Proportional to 5,278.56, 7,283.52 and 3,512.72

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Solution

The fourth proportional to 5,278.56, 7,283.52 and 3,512.72 is: 4,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.56 : 7,283.52 = 3,512.72 : x
  2. Step 2: Convert to fraction form
    5,278.56/7,283.52 = 3,512.72/x
  3. Step 3: Cross multiply
    5,278.56x = 7,283.52 × 3,512.72
  4. Step 4: Simplify right side
    5,278.56x = 25,584,966.37
  5. Step 5: Solve for x
    x = 25,584,966.37/5,278.56
  6. Step 6: Final answer
    x = 4,846.96

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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.