Home / 1,071.09-1,476.36-948.06

Finding the Fourth Proportional to 1,071.09, 1,476.36 and 948.06

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Solution

The fourth proportional to 1,071.09, 1,476.36 and 948.06 is: 1,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071.09 : 1,476.36 = 948.06 : x
  2. Step 2: Convert to fraction form
    1,071.09/1,476.36 = 948.06/x
  3. Step 3: Cross multiply
    1,071.09x = 1,476.36 × 948.06
  4. Step 4: Simplify right side
    1,071.09x = 1,399,677.86
  5. Step 5: Solve for x
    x = 1,399,677.86/1,071.09
  6. Step 6: Final answer
    x = 1,306.78

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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.