Home / 5,278.43-7,282.39-3,287.35

Finding the Fourth Proportional to 5,278.43, 7,282.39 and 3,287.35

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Solution

The fourth proportional to 5,278.43, 7,282.39 and 3,287.35 is: 4,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.43 : 7,282.39 = 3,287.35 : x
  2. Step 2: Convert to fraction form
    5,278.43/7,282.39 = 3,287.35/x
  3. Step 3: Cross multiply
    5,278.43x = 7,282.39 × 3,287.35
  4. Step 4: Simplify right side
    5,278.43x = 23,939,764.77
  5. Step 5: Solve for x
    x = 23,939,764.77/5,278.43
  6. Step 6: Final answer
    x = 4,535.39

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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.