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Finding the Fourth Proportional to 2,045.82, 3,068 and 875.78

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Solution

The fourth proportional to 2,045.82, 3,068 and 875.78 is: 1,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.82 : 3,068 = 875.78 : x
  2. Step 2: Convert to fraction form
    2,045.82/3,068 = 875.78/x
  3. Step 3: Cross multiply
    2,045.82x = 3,068 × 875.78
  4. Step 4: Simplify right side
    2,045.82x = 2,686,893.04
  5. Step 5: Solve for x
    x = 2,686,893.04/2,045.82
  6. Step 6: Final answer
    x = 1,313.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.