Home / 3,547.43-5,321.70-1,081.68

Finding the Fourth Proportional to 3,547.43, 5,321.70 and 1,081.68

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Solution

The fourth proportional to 3,547.43, 5,321.70 and 1,081.68 is: 1,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.43 : 5,321.70 = 1,081.68 : x
  2. Step 2: Convert to fraction form
    3,547.43/5,321.70 = 1,081.68/x
  3. Step 3: Cross multiply
    3,547.43x = 5,321.70 × 1,081.68
  4. Step 4: Simplify right side
    3,547.43x = 5,756,376.46
  5. Step 5: Solve for x
    x = 5,756,376.46/3,547.43
  6. Step 6: Final answer
    x = 1,622.69

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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.