Home / 3,878.31-5,352.62-2,200.13

Finding the Fourth Proportional to 3,878.31, 5,352.62 and 2,200.13

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Solution

The fourth proportional to 3,878.31, 5,352.62 and 2,200.13 is: 3,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.31 : 5,352.62 = 2,200.13 : x
  2. Step 2: Convert to fraction form
    3,878.31/5,352.62 = 2,200.13/x
  3. Step 3: Cross multiply
    3,878.31x = 5,352.62 × 2,200.13
  4. Step 4: Simplify right side
    3,878.31x = 11,776,484.63
  5. Step 5: Solve for x
    x = 11,776,484.63/3,878.31
  6. Step 6: Final answer
    x = 3,036.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.