Home / 5,875.78-8,817.60-2,178.04

Finding the Fourth Proportional to 5,875.78, 8,817.60 and 2,178.04

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Solution

The fourth proportional to 5,875.78, 8,817.60 and 2,178.04 is: 3,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,875.78 : 8,817.60 = 2,178.04 : x
  2. Step 2: Convert to fraction form
    5,875.78/8,817.60 = 2,178.04/x
  3. Step 3: Cross multiply
    5,875.78x = 8,817.60 × 2,178.04
  4. Step 4: Simplify right side
    5,875.78x = 19,205,063.46
  5. Step 5: Solve for x
    x = 19,205,063.46/5,875.78
  6. Step 6: Final answer
    x = 3,268.51

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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.