Home / 5,138.24-7,090.62-2,900.09

Finding the Fourth Proportional to 5,138.24, 7,090.62 and 2,900.09

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Solution

The fourth proportional to 5,138.24, 7,090.62 and 2,900.09 is: 4,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.24 : 7,090.62 = 2,900.09 : x
  2. Step 2: Convert to fraction form
    5,138.24/7,090.62 = 2,900.09/x
  3. Step 3: Cross multiply
    5,138.24x = 7,090.62 × 2,900.09
  4. Step 4: Simplify right side
    5,138.24x = 20,563,436.16
  5. Step 5: Solve for x
    x = 20,563,436.16/5,138.24
  6. Step 6: Final answer
    x = 4,002.04

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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.