Home / 5,154.71-7,113.54-2,796.86

Finding the Fourth Proportional to 5,154.71, 7,113.54 and 2,796.86

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Solution

The fourth proportional to 5,154.71, 7,113.54 and 2,796.86 is: 3,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.71 : 7,113.54 = 2,796.86 : x
  2. Step 2: Convert to fraction form
    5,154.71/7,113.54 = 2,796.86/x
  3. Step 3: Cross multiply
    5,154.71x = 7,113.54 × 2,796.86
  4. Step 4: Simplify right side
    5,154.71x = 19,895,575.48
  5. Step 5: Solve for x
    x = 19,895,575.48/5,154.71
  6. Step 6: Final answer
    x = 3,859.69

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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.