Home / 3,854.17-5,780.65-1,256.50

Finding the Fourth Proportional to 3,854.17, 5,780.65 and 1,256.50

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Solution

The fourth proportional to 3,854.17, 5,780.65 and 1,256.50 is: 1,884.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.17 : 5,780.65 = 1,256.50 : x
  2. Step 2: Convert to fraction form
    3,854.17/5,780.65 = 1,256.50/x
  3. Step 3: Cross multiply
    3,854.17x = 5,780.65 × 1,256.50
  4. Step 4: Simplify right side
    3,854.17x = 7,263,386.73
  5. Step 5: Solve for x
    x = 7,263,386.73/3,854.17
  6. Step 6: Final answer
    x = 1,884.55

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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.