Home / 5,151.91-7,727.87-1,256.32

Finding the Fourth Proportional to 5,151.91, 7,727.87 and 1,256.32

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Solution

The fourth proportional to 5,151.91, 7,727.87 and 1,256.32 is: 1,884.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.91 : 7,727.87 = 1,256.32 : x
  2. Step 2: Convert to fraction form
    5,151.91/7,727.87 = 1,256.32/x
  3. Step 3: Cross multiply
    5,151.91x = 7,727.87 × 1,256.32
  4. Step 4: Simplify right side
    5,151.91x = 9,708,632.72
  5. Step 5: Solve for x
    x = 9,708,632.72/5,151.91
  6. Step 6: Final answer
    x = 1,884.47

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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.