Home / 3,320.08-4,978.47-1,471.78

Finding the Fourth Proportional to 3,320.08, 4,978.47 and 1,471.78

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Solution

The fourth proportional to 3,320.08, 4,978.47 and 1,471.78 is: 2,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.08 : 4,978.47 = 1,471.78 : x
  2. Step 2: Convert to fraction form
    3,320.08/4,978.47 = 1,471.78/x
  3. Step 3: Cross multiply
    3,320.08x = 4,978.47 × 1,471.78
  4. Step 4: Simplify right side
    3,320.08x = 7,327,212.58
  5. Step 5: Solve for x
    x = 7,327,212.58/3,320.08
  6. Step 6: Final answer
    x = 2,206.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.