Home / 2,097.22-3,145.26-999.40

Finding the Fourth Proportional to 2,097.22, 3,145.26 and 999.40

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Solution

The fourth proportional to 2,097.22, 3,145.26 and 999.40 is: 1,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.22 : 3,145.26 = 999.40 : x
  2. Step 2: Convert to fraction form
    2,097.22/3,145.26 = 999.40/x
  3. Step 3: Cross multiply
    2,097.22x = 3,145.26 × 999.40
  4. Step 4: Simplify right side
    2,097.22x = 3,143,372.84
  5. Step 5: Solve for x
    x = 3,143,372.84/2,097.22
  6. Step 6: Final answer
    x = 1,498.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.