Home / 2,207.12-3,045.96-1,275.68

Finding the Fourth Proportional to 2,207.12, 3,045.96 and 1,275.68

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Solution

The fourth proportional to 2,207.12, 3,045.96 and 1,275.68 is: 1,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.12 : 3,045.96 = 1,275.68 : x
  2. Step 2: Convert to fraction form
    2,207.12/3,045.96 = 1,275.68/x
  3. Step 3: Cross multiply
    2,207.12x = 3,045.96 × 1,275.68
  4. Step 4: Simplify right side
    2,207.12x = 3,885,670.25
  5. Step 5: Solve for x
    x = 3,885,670.25/2,207.12
  6. Step 6: Final answer
    x = 1,760.52

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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.