Home / 5,151.28-7,727.77-1,818.59

Finding the Fourth Proportional to 5,151.28, 7,727.77 and 1,818.59

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Solution

The fourth proportional to 5,151.28, 7,727.77 and 1,818.59 is: 2,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.28 : 7,727.77 = 1,818.59 : x
  2. Step 2: Convert to fraction form
    5,151.28/7,727.77 = 1,818.59/x
  3. Step 3: Cross multiply
    5,151.28x = 7,727.77 × 1,818.59
  4. Step 4: Simplify right side
    5,151.28x = 14,053,645.24
  5. Step 5: Solve for x
    x = 14,053,645.24/5,151.28
  6. Step 6: Final answer
    x = 2,728.19

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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.