Home / 3,837.19-5,294.87-2,158.51

Finding the Fourth Proportional to 3,837.19, 5,294.87 and 2,158.51

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Solution

The fourth proportional to 3,837.19, 5,294.87 and 2,158.51 is: 2,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.19 : 5,294.87 = 2,158.51 : x
  2. Step 2: Convert to fraction form
    3,837.19/5,294.87 = 2,158.51/x
  3. Step 3: Cross multiply
    3,837.19x = 5,294.87 × 2,158.51
  4. Step 4: Simplify right side
    3,837.19x = 11,429,029.84
  5. Step 5: Solve for x
    x = 11,429,029.84/3,837.19
  6. Step 6: Final answer
    x = 2,978.49

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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.