Home / 3,543.62-4,890.39-1,971.68

Finding the Fourth Proportional to 3,543.62, 4,890.39 and 1,971.68

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Solution

The fourth proportional to 3,543.62, 4,890.39 and 1,971.68 is: 2,721.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.62 : 4,890.39 = 1,971.68 : x
  2. Step 2: Convert to fraction form
    3,543.62/4,890.39 = 1,971.68/x
  3. Step 3: Cross multiply
    3,543.62x = 4,890.39 × 1,971.68
  4. Step 4: Simplify right side
    3,543.62x = 9,642,284.16
  5. Step 5: Solve for x
    x = 9,642,284.16/3,543.62
  6. Step 6: Final answer
    x = 2,721.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.