Home / 2,190.44-3,023.10-1,404.68

Finding the Fourth Proportional to 2,190.44, 3,023.10 and 1,404.68

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Solution

The fourth proportional to 2,190.44, 3,023.10 and 1,404.68 is: 1,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.44 : 3,023.10 = 1,404.68 : x
  2. Step 2: Convert to fraction form
    2,190.44/3,023.10 = 1,404.68/x
  3. Step 3: Cross multiply
    2,190.44x = 3,023.10 × 1,404.68
  4. Step 4: Simplify right side
    2,190.44x = 4,246,488.11
  5. Step 5: Solve for x
    x = 4,246,488.11/2,190.44
  6. Step 6: Final answer
    x = 1,938.65

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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.