Home / 4,128.96-5,697.90-2,265.96

Finding the Fourth Proportional to 4,128.96, 5,697.90 and 2,265.96

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Solution

The fourth proportional to 4,128.96, 5,697.90 and 2,265.96 is: 3,126.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.96 : 5,697.90 = 2,265.96 : x
  2. Step 2: Convert to fraction form
    4,128.96/5,697.90 = 2,265.96/x
  3. Step 3: Cross multiply
    4,128.96x = 5,697.90 × 2,265.96
  4. Step 4: Simplify right side
    4,128.96x = 12,911,213.48
  5. Step 5: Solve for x
    x = 12,911,213.48/4,128.96
  6. Step 6: Final answer
    x = 3,126.99

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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.