Home / 3,308.70-4,961.06-1,117.38

Finding the Fourth Proportional to 3,308.70, 4,961.06 and 1,117.38

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Solution

The fourth proportional to 3,308.70, 4,961.06 and 1,117.38 is: 1,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.70 : 4,961.06 = 1,117.38 : x
  2. Step 2: Convert to fraction form
    3,308.70/4,961.06 = 1,117.38/x
  3. Step 3: Cross multiply
    3,308.70x = 4,961.06 × 1,117.38
  4. Step 4: Simplify right side
    3,308.70x = 5,543,389.22
  5. Step 5: Solve for x
    x = 5,543,389.22/3,308.70
  6. Step 6: Final answer
    x = 1,675.40

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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.