Home / 1,851.16-2,554.96-1,188.85

Finding the Fourth Proportional to 1,851.16, 2,554.96 and 1,188.85

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Solution

The fourth proportional to 1,851.16, 2,554.96 and 1,188.85 is: 1,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.16 : 2,554.96 = 1,188.85 : x
  2. Step 2: Convert to fraction form
    1,851.16/2,554.96 = 1,188.85/x
  3. Step 3: Cross multiply
    1,851.16x = 2,554.96 × 1,188.85
  4. Step 4: Simplify right side
    1,851.16x = 3,037,464.20
  5. Step 5: Solve for x
    x = 3,037,464.20/1,851.16
  6. Step 6: Final answer
    x = 1,640.84

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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.