Home / 4,128.21-5,696.91-2,265.21

Finding the Fourth Proportional to 4,128.21, 5,696.91 and 2,265.21

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Solution

The fourth proportional to 4,128.21, 5,696.91 and 2,265.21 is: 3,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.21 : 5,696.91 = 2,265.21 : x
  2. Step 2: Convert to fraction form
    4,128.21/5,696.91 = 2,265.21/x
  3. Step 3: Cross multiply
    4,128.21x = 5,696.91 × 2,265.21
  4. Step 4: Simplify right side
    4,128.21x = 12,904,697.50
  5. Step 5: Solve for x
    x = 12,904,697.50/4,128.21
  6. Step 6: Final answer
    x = 3,125.98

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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.