Home / 5,278.98-7,285.38-3,289.62

Finding the Fourth Proportional to 5,278.98, 7,285.38 and 3,289.62

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Solution

The fourth proportional to 5,278.98, 7,285.38 and 3,289.62 is: 4,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.98 : 7,285.38 = 3,289.62 : x
  2. Step 2: Convert to fraction form
    5,278.98/7,285.38 = 3,289.62/x
  3. Step 3: Cross multiply
    5,278.98x = 7,285.38 × 3,289.62
  4. Step 4: Simplify right side
    5,278.98x = 23,966,131.76
  5. Step 5: Solve for x
    x = 23,966,131.76/5,278.98
  6. Step 6: Final answer
    x = 4,539.92

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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.