Home / 2,679.47-4,014.34-2,621.15

Finding the Fourth Proportional to 2,679.47, 4,014.34 and 2,621.15

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Solution

The fourth proportional to 2,679.47, 4,014.34 and 2,621.15 is: 3,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.47 : 4,014.34 = 2,621.15 : x
  2. Step 2: Convert to fraction form
    2,679.47/4,014.34 = 2,621.15/x
  3. Step 3: Cross multiply
    2,679.47x = 4,014.34 × 2,621.15
  4. Step 4: Simplify right side
    2,679.47x = 10,522,187.29
  5. Step 5: Solve for x
    x = 10,522,187.29/2,679.47
  6. Step 6: Final answer
    x = 3,926.97

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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.