Home / 3,430.15-5,138.16-2,553.55

Finding the Fourth Proportional to 3,430.15, 5,138.16 and 2,553.55

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Solution

The fourth proportional to 3,430.15, 5,138.16 and 2,553.55 is: 3,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.15 : 5,138.16 = 2,553.55 : x
  2. Step 2: Convert to fraction form
    3,430.15/5,138.16 = 2,553.55/x
  3. Step 3: Cross multiply
    3,430.15x = 5,138.16 × 2,553.55
  4. Step 4: Simplify right side
    3,430.15x = 13,120,548.47
  5. Step 5: Solve for x
    x = 13,120,548.47/3,430.15
  6. Step 6: Final answer
    x = 3,825.07

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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.