Home / 2,810.36-3,878.24-1,551.39

Finding the Fourth Proportional to 2,810.36, 3,878.24 and 1,551.39

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Solution

The fourth proportional to 2,810.36, 3,878.24 and 1,551.39 is: 2,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.36 : 3,878.24 = 1,551.39 : x
  2. Step 2: Convert to fraction form
    2,810.36/3,878.24 = 1,551.39/x
  3. Step 3: Cross multiply
    2,810.36x = 3,878.24 × 1,551.39
  4. Step 4: Simplify right side
    2,810.36x = 6,016,655.00
  5. Step 5: Solve for x
    x = 6,016,655.00/2,810.36
  6. Step 6: Final answer
    x = 2,140.88

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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.