Home / 2,207.40-3,045.91-1,263.09

Finding the Fourth Proportional to 2,207.40, 3,045.91 and 1,263.09

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Solution

The fourth proportional to 2,207.40, 3,045.91 and 1,263.09 is: 1,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.40 : 3,045.91 = 1,263.09 : x
  2. Step 2: Convert to fraction form
    2,207.40/3,045.91 = 1,263.09/x
  3. Step 3: Cross multiply
    2,207.40x = 3,045.91 × 1,263.09
  4. Step 4: Simplify right side
    2,207.40x = 3,847,258.46
  5. Step 5: Solve for x
    x = 3,847,258.46/2,207.40
  6. Step 6: Final answer
    x = 1,742.89

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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.