Home / 1,914.96-2,642.58-1,086.96

Finding the Fourth Proportional to 1,914.96, 2,642.58 and 1,086.96

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Solution

The fourth proportional to 1,914.96, 2,642.58 and 1,086.96 is: 1,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.96 : 2,642.58 = 1,086.96 : x
  2. Step 2: Convert to fraction form
    1,914.96/2,642.58 = 1,086.96/x
  3. Step 3: Cross multiply
    1,914.96x = 2,642.58 × 1,086.96
  4. Step 4: Simplify right side
    1,914.96x = 2,872,378.76
  5. Step 5: Solve for x
    x = 2,872,378.76/1,914.96
  6. Step 6: Final answer
    x = 1,499.97

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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.