Home / 1,476.14-2,036.61-878.36

Finding the Fourth Proportional to 1,476.14, 2,036.61 and 878.36

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Solution

The fourth proportional to 1,476.14, 2,036.61 and 878.36 is: 1,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.14 : 2,036.61 = 878.36 : x
  2. Step 2: Convert to fraction form
    1,476.14/2,036.61 = 878.36/x
  3. Step 3: Cross multiply
    1,476.14x = 2,036.61 × 878.36
  4. Step 4: Simplify right side
    1,476.14x = 1,788,866.58
  5. Step 5: Solve for x
    x = 1,788,866.58/1,476.14
  6. Step 6: Final answer
    x = 1,211.86

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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.