Home / 4,128.68-5,697.24-2,265.68

Finding the Fourth Proportional to 4,128.68, 5,697.24 and 2,265.68

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Solution

The fourth proportional to 4,128.68, 5,697.24 and 2,265.68 is: 3,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.68 : 5,697.24 = 2,265.68 : x
  2. Step 2: Convert to fraction form
    4,128.68/5,697.24 = 2,265.68/x
  3. Step 3: Cross multiply
    4,128.68x = 5,697.24 × 2,265.68
  4. Step 4: Simplify right side
    4,128.68x = 12,908,122.72
  5. Step 5: Solve for x
    x = 12,908,122.72/4,128.68
  6. Step 6: Final answer
    x = 3,126.45

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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.