Home / 2,207.18-3,310.76-1,386.03

Finding the Fourth Proportional to 2,207.18, 3,310.76 and 1,386.03

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Solution

The fourth proportional to 2,207.18, 3,310.76 and 1,386.03 is: 2,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.18 : 3,310.76 = 1,386.03 : x
  2. Step 2: Convert to fraction form
    2,207.18/3,310.76 = 1,386.03/x
  3. Step 3: Cross multiply
    2,207.18x = 3,310.76 × 1,386.03
  4. Step 4: Simplify right side
    2,207.18x = 4,588,816.15
  5. Step 5: Solve for x
    x = 4,588,816.15/2,207.18
  6. Step 6: Final answer
    x = 2,079.05

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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.