Home / 2,026.76-2,796.90-1,187.88

Finding the Fourth Proportional to 2,026.76, 2,796.90 and 1,187.88

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Solution

The fourth proportional to 2,026.76, 2,796.90 and 1,187.88 is: 1,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.76 : 2,796.90 = 1,187.88 : x
  2. Step 2: Convert to fraction form
    2,026.76/2,796.90 = 1,187.88/x
  3. Step 3: Cross multiply
    2,026.76x = 2,796.90 × 1,187.88
  4. Step 4: Simplify right side
    2,026.76x = 3,322,381.57
  5. Step 5: Solve for x
    x = 3,322,381.57/2,026.76
  6. Step 6: Final answer
    x = 1,639.26

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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.