Home / 5,154.78-7,113.65-2,796.94

Finding the Fourth Proportional to 5,154.78, 7,113.65 and 2,796.94

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Solution

The fourth proportional to 5,154.78, 7,113.65 and 2,796.94 is: 3,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.78 : 7,113.65 = 2,796.94 : x
  2. Step 2: Convert to fraction form
    5,154.78/7,113.65 = 2,796.94/x
  3. Step 3: Cross multiply
    5,154.78x = 7,113.65 × 2,796.94
  4. Step 4: Simplify right side
    5,154.78x = 19,896,452.23
  5. Step 5: Solve for x
    x = 19,896,452.23/5,154.78
  6. Step 6: Final answer
    x = 3,859.81

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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.