Home / 3,151.48-4,699.69-2,797.44

Finding the Fourth Proportional to 3,151.48, 4,699.69 and 2,797.44

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Solution

The fourth proportional to 3,151.48, 4,699.69 and 2,797.44 is: 4,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.48 : 4,699.69 = 2,797.44 : x
  2. Step 2: Convert to fraction form
    3,151.48/4,699.69 = 2,797.44/x
  3. Step 3: Cross multiply
    3,151.48x = 4,699.69 × 2,797.44
  4. Step 4: Simplify right side
    3,151.48x = 13,147,100.79
  5. Step 5: Solve for x
    x = 13,147,100.79/3,151.48
  6. Step 6: Final answer
    x = 4,171.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.