Home / 3,319.81-4,981.43-1,472.20

Finding the Fourth Proportional to 3,319.81, 4,981.43 and 1,472.20

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Solution

The fourth proportional to 3,319.81, 4,981.43 and 1,472.20 is: 2,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.81 : 4,981.43 = 1,472.20 : x
  2. Step 2: Convert to fraction form
    3,319.81/4,981.43 = 1,472.20/x
  3. Step 3: Cross multiply
    3,319.81x = 4,981.43 × 1,472.20
  4. Step 4: Simplify right side
    3,319.81x = 7,333,652.47
  5. Step 5: Solve for x
    x = 7,333,652.47/3,319.81
  6. Step 6: Final answer
    x = 2,209.06

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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.