Home / 1,851.32-2,554.26-1,188.02

Finding the Fourth Proportional to 1,851.32, 2,554.26 and 1,188.02

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Solution

The fourth proportional to 1,851.32, 2,554.26 and 1,188.02 is: 1,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.32 : 2,554.26 = 1,188.02 : x
  2. Step 2: Convert to fraction form
    1,851.32/2,554.26 = 1,188.02/x
  3. Step 3: Cross multiply
    1,851.32x = 2,554.26 × 1,188.02
  4. Step 4: Simplify right side
    1,851.32x = 3,034,511.97
  5. Step 5: Solve for x
    x = 3,034,511.97/1,851.32
  6. Step 6: Final answer
    x = 1,639.11

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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.