Home / 3,320.19-4,980.96-1,372.68

Finding the Fourth Proportional to 3,320.19, 4,980.96 and 1,372.68

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Solution

The fourth proportional to 3,320.19, 4,980.96 and 1,372.68 is: 2,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.19 : 4,980.96 = 1,372.68 : x
  2. Step 2: Convert to fraction form
    3,320.19/4,980.96 = 1,372.68/x
  3. Step 3: Cross multiply
    3,320.19x = 4,980.96 × 1,372.68
  4. Step 4: Simplify right side
    3,320.19x = 6,837,264.17
  5. Step 5: Solve for x
    x = 6,837,264.17/3,320.19
  6. Step 6: Final answer
    x = 2,059.30

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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.