Home / 5,168.91-7,740.99-2,825.40

Finding the Fourth Proportional to 5,168.91, 7,740.99 and 2,825.40

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Solution

The fourth proportional to 5,168.91, 7,740.99 and 2,825.40 is: 4,231.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.91 : 7,740.99 = 2,825.40 : x
  2. Step 2: Convert to fraction form
    5,168.91/7,740.99 = 2,825.40/x
  3. Step 3: Cross multiply
    5,168.91x = 7,740.99 × 2,825.40
  4. Step 4: Simplify right side
    5,168.91x = 21,871,393.15
  5. Step 5: Solve for x
    x = 21,871,393.15/5,168.91
  6. Step 6: Final answer
    x = 4,231.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.