Home / 3,772.35-5,657.63-1,139.31

Finding the Fourth Proportional to 3,772.35, 5,657.63 and 1,139.31

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Solution

The fourth proportional to 3,772.35, 5,657.63 and 1,139.31 is: 1,708.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.35 : 5,657.63 = 1,139.31 : x
  2. Step 2: Convert to fraction form
    3,772.35/5,657.63 = 1,139.31/x
  3. Step 3: Cross multiply
    3,772.35x = 5,657.63 × 1,139.31
  4. Step 4: Simplify right side
    3,772.35x = 6,445,788.74
  5. Step 5: Solve for x
    x = 6,445,788.74/3,772.35
  6. Step 6: Final answer
    x = 1,708.69

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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.