Home / 5,402.12-8,100.16-2,628.68

Finding the Fourth Proportional to 5,402.12, 8,100.16 and 2,628.68

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Solution

The fourth proportional to 5,402.12, 8,100.16 and 2,628.68 is: 3,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.12 : 8,100.16 = 2,628.68 : x
  2. Step 2: Convert to fraction form
    5,402.12/8,100.16 = 2,628.68/x
  3. Step 3: Cross multiply
    5,402.12x = 8,100.16 × 2,628.68
  4. Step 4: Simplify right side
    5,402.12x = 21,292,728.59
  5. Step 5: Solve for x
    x = 21,292,728.59/5,402.12
  6. Step 6: Final answer
    x = 3,941.55

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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.