Home / 2,781.53-3,837.93-1,838.88

Finding the Fourth Proportional to 2,781.53, 3,837.93 and 1,838.88

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Solution

The fourth proportional to 2,781.53, 3,837.93 and 1,838.88 is: 2,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.53 : 3,837.93 = 1,838.88 : x
  2. Step 2: Convert to fraction form
    2,781.53/3,837.93 = 1,838.88/x
  3. Step 3: Cross multiply
    2,781.53x = 3,837.93 × 1,838.88
  4. Step 4: Simplify right side
    2,781.53x = 7,057,492.72
  5. Step 5: Solve for x
    x = 7,057,492.72/2,781.53
  6. Step 6: Final answer
    x = 2,537.27

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1.5x scale

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.