Home / 1,851.53-2,554.26-1,253.81

Finding the Fourth Proportional to 1,851.53, 2,554.26 and 1,253.81

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Solution

The fourth proportional to 1,851.53, 2,554.26 and 1,253.81 is: 1,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.53 : 2,554.26 = 1,253.81 : x
  2. Step 2: Convert to fraction form
    1,851.53/2,554.26 = 1,253.81/x
  3. Step 3: Cross multiply
    1,851.53x = 2,554.26 × 1,253.81
  4. Step 4: Simplify right side
    1,851.53x = 3,202,543.96
  5. Step 5: Solve for x
    x = 3,202,543.96/1,851.53
  6. Step 6: Final answer
    x = 1,729.68

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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.