Home / 1,841.68-2,542.46-1,421.09

Finding the Fourth Proportional to 1,841.68, 2,542.46 and 1,421.09

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Solution

The fourth proportional to 1,841.68, 2,542.46 and 1,421.09 is: 1,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.68 : 2,542.46 = 1,421.09 : x
  2. Step 2: Convert to fraction form
    1,841.68/2,542.46 = 1,421.09/x
  3. Step 3: Cross multiply
    1,841.68x = 2,542.46 × 1,421.09
  4. Step 4: Simplify right side
    1,841.68x = 3,613,064.48
  5. Step 5: Solve for x
    x = 3,613,064.48/1,841.68
  6. Step 6: Final answer
    x = 1,961.83

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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.