Home / 4,138.15-5,706.73-2,643.47

Finding the Fourth Proportional to 4,138.15, 5,706.73 and 2,643.47

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Solution

The fourth proportional to 4,138.15, 5,706.73 and 2,643.47 is: 3,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.15 : 5,706.73 = 2,643.47 : x
  2. Step 2: Convert to fraction form
    4,138.15/5,706.73 = 2,643.47/x
  3. Step 3: Cross multiply
    4,138.15x = 5,706.73 × 2,643.47
  4. Step 4: Simplify right side
    4,138.15x = 15,085,558.29
  5. Step 5: Solve for x
    x = 15,085,558.29/4,138.15
  6. Step 6: Final answer
    x = 3,645.49

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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.