Home / 2,238.19-3,089.10-1,399.44

Finding the Fourth Proportional to 2,238.19, 3,089.10 and 1,399.44

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Solution

The fourth proportional to 2,238.19, 3,089.10 and 1,399.44 is: 1,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.19 : 3,089.10 = 1,399.44 : x
  2. Step 2: Convert to fraction form
    2,238.19/3,089.10 = 1,399.44/x
  3. Step 3: Cross multiply
    2,238.19x = 3,089.10 × 1,399.44
  4. Step 4: Simplify right side
    2,238.19x = 4,323,010.10
  5. Step 5: Solve for x
    x = 4,323,010.10/2,238.19
  6. Step 6: Final answer
    x = 1,931.48

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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.