Home / 2,781.20-3,836.34-1,837.04

Finding the Fourth Proportional to 2,781.20, 3,836.34 and 1,837.04

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Solution

The fourth proportional to 2,781.20, 3,836.34 and 1,837.04 is: 2,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.20 : 3,836.34 = 1,837.04 : x
  2. Step 2: Convert to fraction form
    2,781.20/3,836.34 = 1,837.04/x
  3. Step 3: Cross multiply
    2,781.20x = 3,836.34 × 1,837.04
  4. Step 4: Simplify right side
    2,781.20x = 7,047,510.03
  5. Step 5: Solve for x
    x = 7,047,510.03/2,781.20
  6. Step 6: Final answer
    x = 2,533.98

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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.