Home / 3,878.83-5,818.29-1,657.36

Finding the Fourth Proportional to 3,878.83, 5,818.29 and 1,657.36

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Solution

The fourth proportional to 3,878.83, 5,818.29 and 1,657.36 is: 2,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.83 : 5,818.29 = 1,657.36 : x
  2. Step 2: Convert to fraction form
    3,878.83/5,818.29 = 1,657.36/x
  3. Step 3: Cross multiply
    3,878.83x = 5,818.29 × 1,657.36
  4. Step 4: Simplify right side
    3,878.83x = 9,643,001.11
  5. Step 5: Solve for x
    x = 9,643,001.11/3,878.83
  6. Step 6: Final answer
    x = 2,486.06

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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.