Home / 5,157.07-7,736.28-1,871.71

Finding the Fourth Proportional to 5,157.07, 7,736.28 and 1,871.71

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Solution

The fourth proportional to 5,157.07, 7,736.28 and 1,871.71 is: 2,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.07 : 7,736.28 = 1,871.71 : x
  2. Step 2: Convert to fraction form
    5,157.07/7,736.28 = 1,871.71/x
  3. Step 3: Cross multiply
    5,157.07x = 7,736.28 × 1,871.71
  4. Step 4: Simplify right side
    5,157.07x = 14,480,046.28
  5. Step 5: Solve for x
    x = 14,480,046.28/5,157.07
  6. Step 6: Final answer
    x = 2,807.81

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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.