Home / 6,781.52-10,172.36-1,851.26

Finding the Fourth Proportional to 6,781.52, 10,172.36 and 1,851.26

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Solution

The fourth proportional to 6,781.52, 10,172.36 and 1,851.26 is: 2,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.52 : 10,172.36 = 1,851.26 : x
  2. Step 2: Convert to fraction form
    6,781.52/10,172.36 = 1,851.26/x
  3. Step 3: Cross multiply
    6,781.52x = 10,172.36 × 1,851.26
  4. Step 4: Simplify right side
    6,781.52x = 18,831,683.17
  5. Step 5: Solve for x
    x = 18,831,683.17/6,781.52
  6. Step 6: Final answer
    x = 2,776.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.