Home / 5,131.48-7,697.71-2,358.92

Finding the Fourth Proportional to 5,131.48, 7,697.71 and 2,358.92

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Solution

The fourth proportional to 5,131.48, 7,697.71 and 2,358.92 is: 3,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.48 : 7,697.71 = 2,358.92 : x
  2. Step 2: Convert to fraction form
    5,131.48/7,697.71 = 2,358.92/x
  3. Step 3: Cross multiply
    5,131.48x = 7,697.71 × 2,358.92
  4. Step 4: Simplify right side
    5,131.48x = 18,158,297.63
  5. Step 5: Solve for x
    x = 18,158,297.63/5,131.48
  6. Step 6: Final answer
    x = 3,538.61

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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.