Home / 3,761.78-5,641.65-1,570.05

Finding the Fourth Proportional to 3,761.78, 5,641.65 and 1,570.05

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Solution

The fourth proportional to 3,761.78, 5,641.65 and 1,570.05 is: 2,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.78 : 5,641.65 = 1,570.05 : x
  2. Step 2: Convert to fraction form
    3,761.78/5,641.65 = 1,570.05/x
  3. Step 3: Cross multiply
    3,761.78x = 5,641.65 × 1,570.05
  4. Step 4: Simplify right side
    3,761.78x = 8,857,672.58
  5. Step 5: Solve for x
    x = 8,857,672.58/3,761.78
  6. Step 6: Final answer
    x = 2,354.65

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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.