Home / 2,207.72-3,046.57-1,213.02

Finding the Fourth Proportional to 2,207.72, 3,046.57 and 1,213.02

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Solution

The fourth proportional to 2,207.72, 3,046.57 and 1,213.02 is: 1,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.72 : 3,046.57 = 1,213.02 : x
  2. Step 2: Convert to fraction form
    2,207.72/3,046.57 = 1,213.02/x
  3. Step 3: Cross multiply
    2,207.72x = 3,046.57 × 1,213.02
  4. Step 4: Simplify right side
    2,207.72x = 3,695,547.31
  5. Step 5: Solve for x
    x = 3,695,547.31/2,207.72
  6. Step 6: Final answer
    x = 1,673.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.