Home / 4,238.39-6,356.13-1,640.63

Finding the Fourth Proportional to 4,238.39, 6,356.13 and 1,640.63

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Solution

The fourth proportional to 4,238.39, 6,356.13 and 1,640.63 is: 2,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,238.39 : 6,356.13 = 1,640.63 : x
  2. Step 2: Convert to fraction form
    4,238.39/6,356.13 = 1,640.63/x
  3. Step 3: Cross multiply
    4,238.39x = 6,356.13 × 1,640.63
  4. Step 4: Simplify right side
    4,238.39x = 10,428,025.78
  5. Step 5: Solve for x
    x = 10,428,025.78/4,238.39
  6. Step 6: Final answer
    x = 2,460.38

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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.