Home / 3,780.00-5,669.36-1,146.87

Finding the Fourth Proportional to 3,780.00, 5,669.36 and 1,146.87

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Solution

The fourth proportional to 3,780.00, 5,669.36 and 1,146.87 is: 1,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.00 : 5,669.36 = 1,146.87 : x
  2. Step 2: Convert to fraction form
    3,780.00/5,669.36 = 1,146.87/x
  3. Step 3: Cross multiply
    3,780.00x = 5,669.36 × 1,146.87
  4. Step 4: Simplify right side
    3,780.00x = 6,502,000.67
  5. Step 5: Solve for x
    x = 6,502,000.67/3,780.00
  6. Step 6: Final answer
    x = 1,720.11

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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.