Home / 5,434.14-8,147.56-2,145.54

Finding the Fourth Proportional to 5,434.14, 8,147.56 and 2,145.54

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Solution

The fourth proportional to 5,434.14, 8,147.56 and 2,145.54 is: 3,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.14 : 8,147.56 = 2,145.54 : x
  2. Step 2: Convert to fraction form
    5,434.14/8,147.56 = 2,145.54/x
  3. Step 3: Cross multiply
    5,434.14x = 8,147.56 × 2,145.54
  4. Step 4: Simplify right side
    5,434.14x = 17,480,895.51
  5. Step 5: Solve for x
    x = 17,480,895.51/5,434.14
  6. Step 6: Final answer
    x = 3,216.87

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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.