Home / 5,245.72-7,870.26-2,611.48

Finding the Fourth Proportional to 5,245.72, 7,870.26 and 2,611.48

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Solution

The fourth proportional to 5,245.72, 7,870.26 and 2,611.48 is: 3,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.72 : 7,870.26 = 2,611.48 : x
  2. Step 2: Convert to fraction form
    5,245.72/7,870.26 = 2,611.48/x
  3. Step 3: Cross multiply
    5,245.72x = 7,870.26 × 2,611.48
  4. Step 4: Simplify right side
    5,245.72x = 20,553,026.58
  5. Step 5: Solve for x
    x = 20,553,026.58/5,245.72
  6. Step 6: Final answer
    x = 3,918.06

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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.