Home / 1,814.43-2,721.66-718.23

Finding the Fourth Proportional to 1,814.43, 2,721.66 and 718.23

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Solution

The fourth proportional to 1,814.43, 2,721.66 and 718.23 is: 1,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.43 : 2,721.66 = 718.23 : x
  2. Step 2: Convert to fraction form
    1,814.43/2,721.66 = 718.23/x
  3. Step 3: Cross multiply
    1,814.43x = 2,721.66 × 718.23
  4. Step 4: Simplify right side
    1,814.43x = 1,954,777.86
  5. Step 5: Solve for x
    x = 1,954,777.86/1,814.43
  6. Step 6: Final answer
    x = 1,077.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.