Home / 5,155.58-7,114.67-2,797.71

Finding the Fourth Proportional to 5,155.58, 7,114.67 and 2,797.71

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Solution

The fourth proportional to 5,155.58, 7,114.67 and 2,797.71 is: 3,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.58 : 7,114.67 = 2,797.71 : x
  2. Step 2: Convert to fraction form
    5,155.58/7,114.67 = 2,797.71/x
  3. Step 3: Cross multiply
    5,155.58x = 7,114.67 × 2,797.71
  4. Step 4: Simplify right side
    5,155.58x = 19,904,769.42
  5. Step 5: Solve for x
    x = 19,904,769.42/5,155.58
  6. Step 6: Final answer
    x = 3,860.82

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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.