Home / 5,145.26-7,705.53-2,799.42

Finding the Fourth Proportional to 5,145.26, 7,705.53 and 2,799.42

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Solution

The fourth proportional to 5,145.26, 7,705.53 and 2,799.42 is: 4,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.26 : 7,705.53 = 2,799.42 : x
  2. Step 2: Convert to fraction form
    5,145.26/7,705.53 = 2,799.42/x
  3. Step 3: Cross multiply
    5,145.26x = 7,705.53 × 2,799.42
  4. Step 4: Simplify right side
    5,145.26x = 21,571,014.79
  5. Step 5: Solve for x
    x = 21,571,014.79/5,145.26
  6. Step 6: Final answer
    x = 4,192.41

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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.