Home / 3,547.62-5,321.43-1,238.58

Finding the Fourth Proportional to 3,547.62, 5,321.43 and 1,238.58

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Solution

The fourth proportional to 3,547.62, 5,321.43 and 1,238.58 is: 1,857.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.62 : 5,321.43 = 1,238.58 : x
  2. Step 2: Convert to fraction form
    3,547.62/5,321.43 = 1,238.58/x
  3. Step 3: Cross multiply
    3,547.62x = 5,321.43 × 1,238.58
  4. Step 4: Simplify right side
    3,547.62x = 6,591,016.77
  5. Step 5: Solve for x
    x = 6,591,016.77/3,547.62
  6. Step 6: Final answer
    x = 1,857.87

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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.