Home / 4,255.47-6,384.60-3,640.38

Finding the Fourth Proportional to 4,255.47, 6,384.60 and 3,640.38

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Solution

The fourth proportional to 4,255.47, 6,384.60 and 3,640.38 is: 5,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.47 : 6,384.60 = 3,640.38 : x
  2. Step 2: Convert to fraction form
    4,255.47/6,384.60 = 3,640.38/x
  3. Step 3: Cross multiply
    4,255.47x = 6,384.60 × 3,640.38
  4. Step 4: Simplify right side
    4,255.47x = 23,242,370.15
  5. Step 5: Solve for x
    x = 23,242,370.15/4,255.47
  6. Step 6: Final answer
    x = 5,461.76

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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.