Home / 3,379.12-5,069.32-1,038.70

Finding the Fourth Proportional to 3,379.12, 5,069.32 and 1,038.70

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Solution

The fourth proportional to 3,379.12, 5,069.32 and 1,038.70 is: 1,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.12 : 5,069.32 = 1,038.70 : x
  2. Step 2: Convert to fraction form
    3,379.12/5,069.32 = 1,038.70/x
  3. Step 3: Cross multiply
    3,379.12x = 5,069.32 × 1,038.70
  4. Step 4: Simplify right side
    3,379.12x = 5,265,502.68
  5. Step 5: Solve for x
    x = 5,265,502.68/3,379.12
  6. Step 6: Final answer
    x = 1,558.25

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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.