Home / 2,193.79-3,026.42-1,261.75

Finding the Fourth Proportional to 2,193.79, 3,026.42 and 1,261.75

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Solution

The fourth proportional to 2,193.79, 3,026.42 and 1,261.75 is: 1,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.79 : 3,026.42 = 1,261.75 : x
  2. Step 2: Convert to fraction form
    2,193.79/3,026.42 = 1,261.75/x
  3. Step 3: Cross multiply
    2,193.79x = 3,026.42 × 1,261.75
  4. Step 4: Simplify right side
    2,193.79x = 3,818,579.13
  5. Step 5: Solve for x
    x = 3,818,579.13/2,193.79
  6. Step 6: Final answer
    x = 1,740.63

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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.