Home / 5,134.28-7,701.39-1,238.68

Finding the Fourth Proportional to 5,134.28, 7,701.39 and 1,238.68

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Solution

The fourth proportional to 5,134.28, 7,701.39 and 1,238.68 is: 1,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.28 : 7,701.39 = 1,238.68 : x
  2. Step 2: Convert to fraction form
    5,134.28/7,701.39 = 1,238.68/x
  3. Step 3: Cross multiply
    5,134.28x = 7,701.39 × 1,238.68
  4. Step 4: Simplify right side
    5,134.28x = 9,539,567.39
  5. Step 5: Solve for x
    x = 9,539,567.39/5,134.28
  6. Step 6: Final answer
    x = 1,858.02

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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.