Home / 2,620.90-3,617.36-1,502.60

Finding the Fourth Proportional to 2,620.90, 3,617.36 and 1,502.60

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Solution

The fourth proportional to 2,620.90, 3,617.36 and 1,502.60 is: 2,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.90 : 3,617.36 = 1,502.60 : x
  2. Step 2: Convert to fraction form
    2,620.90/3,617.36 = 1,502.60/x
  3. Step 3: Cross multiply
    2,620.90x = 3,617.36 × 1,502.60
  4. Step 4: Simplify right side
    2,620.90x = 5,435,445.14
  5. Step 5: Solve for x
    x = 5,435,445.14/2,620.90
  6. Step 6: Final answer
    x = 2,073.88

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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.