Home / 2,090.73-2,885.45-1,251.42

Finding the Fourth Proportional to 2,090.73, 2,885.45 and 1,251.42

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Solution

The fourth proportional to 2,090.73, 2,885.45 and 1,251.42 is: 1,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.73 : 2,885.45 = 1,251.42 : x
  2. Step 2: Convert to fraction form
    2,090.73/2,885.45 = 1,251.42/x
  3. Step 3: Cross multiply
    2,090.73x = 2,885.45 × 1,251.42
  4. Step 4: Simplify right side
    2,090.73x = 3,610,909.84
  5. Step 5: Solve for x
    x = 3,610,909.84/2,090.73
  6. Step 6: Final answer
    x = 1,727.10

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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.