Home / 2,781.24-3,837.74-1,539.32

Finding the Fourth Proportional to 2,781.24, 3,837.74 and 1,539.32

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Solution

The fourth proportional to 2,781.24, 3,837.74 and 1,539.32 is: 2,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.24 : 3,837.74 = 1,539.32 : x
  2. Step 2: Convert to fraction form
    2,781.24/3,837.74 = 1,539.32/x
  3. Step 3: Cross multiply
    2,781.24x = 3,837.74 × 1,539.32
  4. Step 4: Simplify right side
    2,781.24x = 5,907,509.94
  5. Step 5: Solve for x
    x = 5,907,509.94/2,781.24
  6. Step 6: Final answer
    x = 2,124.06

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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.