Home / 2,639.03-3,642.04-1,520.26

Finding the Fourth Proportional to 2,639.03, 3,642.04 and 1,520.26

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Solution

The fourth proportional to 2,639.03, 3,642.04 and 1,520.26 is: 2,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.03 : 3,642.04 = 1,520.26 : x
  2. Step 2: Convert to fraction form
    2,639.03/3,642.04 = 1,520.26/x
  3. Step 3: Cross multiply
    2,639.03x = 3,642.04 × 1,520.26
  4. Step 4: Simplify right side
    2,639.03x = 5,536,847.73
  5. Step 5: Solve for x
    x = 5,536,847.73/2,639.03
  6. Step 6: Final answer
    x = 2,098.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.