Home / 5,154.87-7,113.75-2,797.02

Finding the Fourth Proportional to 5,154.87, 7,113.75 and 2,797.02

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Solution

The fourth proportional to 5,154.87, 7,113.75 and 2,797.02 is: 3,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.87 : 7,113.75 = 2,797.02 : x
  2. Step 2: Convert to fraction form
    5,154.87/7,113.75 = 2,797.02/x
  3. Step 3: Cross multiply
    5,154.87x = 7,113.75 × 2,797.02
  4. Step 4: Simplify right side
    5,154.87x = 19,897,301.03
  5. Step 5: Solve for x
    x = 19,897,301.03/5,154.87
  6. Step 6: Final answer
    x = 3,859.90

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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.