Home / 4,135.76-5,707.08-2,272.64

Finding the Fourth Proportional to 4,135.76, 5,707.08 and 2,272.64

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Solution

The fourth proportional to 4,135.76, 5,707.08 and 2,272.64 is: 3,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.76 : 5,707.08 = 2,272.64 : x
  2. Step 2: Convert to fraction form
    4,135.76/5,707.08 = 2,272.64/x
  3. Step 3: Cross multiply
    4,135.76x = 5,707.08 × 2,272.64
  4. Step 4: Simplify right side
    4,135.76x = 12,970,138.29
  5. Step 5: Solve for x
    x = 12,970,138.29/4,135.76
  6. Step 6: Final answer
    x = 3,136.10

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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.