Home / 3,775.20-5,662.80-1,178.08

Finding the Fourth Proportional to 3,775.20, 5,662.80 and 1,178.08

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Solution

The fourth proportional to 3,775.20, 5,662.80 and 1,178.08 is: 1,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.20 : 5,662.80 = 1,178.08 : x
  2. Step 2: Convert to fraction form
    3,775.20/5,662.80 = 1,178.08/x
  3. Step 3: Cross multiply
    3,775.20x = 5,662.80 × 1,178.08
  4. Step 4: Simplify right side
    3,775.20x = 6,671,231.42
  5. Step 5: Solve for x
    x = 6,671,231.42/3,775.20
  6. Step 6: Final answer
    x = 1,767.12

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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.