Home / 3,781.38-5,671.62-1,316.00

Finding the Fourth Proportional to 3,781.38, 5,671.62 and 1,316.00

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Solution

The fourth proportional to 3,781.38, 5,671.62 and 1,316.00 is: 1,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.38 : 5,671.62 = 1,316.00 : x
  2. Step 2: Convert to fraction form
    3,781.38/5,671.62 = 1,316.00/x
  3. Step 3: Cross multiply
    3,781.38x = 5,671.62 × 1,316.00
  4. Step 4: Simplify right side
    3,781.38x = 7,463,834.20
  5. Step 5: Solve for x
    x = 7,463,834.20/3,781.38
  6. Step 6: Final answer
    x = 1,973.84

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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.