Home / 5,278.61-7,283.40-3,039.89

Finding the Fourth Proportional to 5,278.61, 7,283.40 and 3,039.89

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Solution

The fourth proportional to 5,278.61, 7,283.40 and 3,039.89 is: 4,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.61 : 7,283.40 = 3,039.89 : x
  2. Step 2: Convert to fraction form
    5,278.61/7,283.40 = 3,039.89/x
  3. Step 3: Cross multiply
    5,278.61x = 7,283.40 × 3,039.89
  4. Step 4: Simplify right side
    5,278.61x = 22,140,745.08
  5. Step 5: Solve for x
    x = 22,140,745.08/5,278.61
  6. Step 6: Final answer
    x = 4,194.43

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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.