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Finding the Fourth Proportional to 4,148.76, 5,726.22 and 2,636.76

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Solution

The fourth proportional to 4,148.76, 5,726.22 and 2,636.76 is: 3,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.76 : 5,726.22 = 2,636.76 : x
  2. Step 2: Convert to fraction form
    4,148.76/5,726.22 = 2,636.76/x
  3. Step 3: Cross multiply
    4,148.76x = 5,726.22 × 2,636.76
  4. Step 4: Simplify right side
    4,148.76x = 15,098,667.85
  5. Step 5: Solve for x
    x = 15,098,667.85/4,148.76
  6. Step 6: Final answer
    x = 3,639.32

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Half scale
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Double scale
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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.