Home / 2,237.19-3,087.72-1,398.44

Finding the Fourth Proportional to 2,237.19, 3,087.72 and 1,398.44

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Solution

The fourth proportional to 2,237.19, 3,087.72 and 1,398.44 is: 1,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.19 : 3,087.72 = 1,398.44 : x
  2. Step 2: Convert to fraction form
    2,237.19/3,087.72 = 1,398.44/x
  3. Step 3: Cross multiply
    2,237.19x = 3,087.72 × 1,398.44
  4. Step 4: Simplify right side
    2,237.19x = 4,317,991.16
  5. Step 5: Solve for x
    x = 4,317,991.16/2,237.19
  6. Step 6: Final answer
    x = 1,930.10

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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.