Home / 5,434.45-8,151.74-1,538.75

Finding the Fourth Proportional to 5,434.45, 8,151.74 and 1,538.75

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Solution

The fourth proportional to 5,434.45, 8,151.74 and 1,538.75 is: 2,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.45 : 8,151.74 = 1,538.75 : x
  2. Step 2: Convert to fraction form
    5,434.45/8,151.74 = 1,538.75/x
  3. Step 3: Cross multiply
    5,434.45x = 8,151.74 × 1,538.75
  4. Step 4: Simplify right side
    5,434.45x = 12,543,489.93
  5. Step 5: Solve for x
    x = 12,543,489.93/5,434.45
  6. Step 6: Final answer
    x = 2,308.14

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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.