Home / 5,131.71-7,697.57-1,236.11

Finding the Fourth Proportional to 5,131.71, 7,697.57 and 1,236.11

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Solution

The fourth proportional to 5,131.71, 7,697.57 and 1,236.11 is: 1,854.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.71 : 7,697.57 = 1,236.11 : x
  2. Step 2: Convert to fraction form
    5,131.71/7,697.57 = 1,236.11/x
  3. Step 3: Cross multiply
    5,131.71x = 7,697.57 × 1,236.11
  4. Step 4: Simplify right side
    5,131.71x = 9,514,998.58
  5. Step 5: Solve for x
    x = 9,514,998.58/5,131.71
  6. Step 6: Final answer
    x = 1,854.16

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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.