Home / 1,456.12-2,008.82-1,177.28

Finding the Fourth Proportional to 1,456.12, 2,008.82 and 1,177.28

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Solution

The fourth proportional to 1,456.12, 2,008.82 and 1,177.28 is: 1,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.12 : 2,008.82 = 1,177.28 : x
  2. Step 2: Convert to fraction form
    1,456.12/2,008.82 = 1,177.28/x
  3. Step 3: Cross multiply
    1,456.12x = 2,008.82 × 1,177.28
  4. Step 4: Simplify right side
    1,456.12x = 2,364,936.51
  5. Step 5: Solve for x
    x = 2,364,936.51/1,456.12
  6. Step 6: Final answer
    x = 1,624.14

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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.