Home / 2,612.82-3,900.26-2,420.10

Finding the Fourth Proportional to 2,612.82, 3,900.26 and 2,420.10

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Solution

The fourth proportional to 2,612.82, 3,900.26 and 2,420.10 is: 3,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.82 : 3,900.26 = 2,420.10 : x
  2. Step 2: Convert to fraction form
    2,612.82/3,900.26 = 2,420.10/x
  3. Step 3: Cross multiply
    2,612.82x = 3,900.26 × 2,420.10
  4. Step 4: Simplify right side
    2,612.82x = 9,439,007.13
  5. Step 5: Solve for x
    x = 9,439,007.13/2,612.82
  6. Step 6: Final answer
    x = 3,612.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.