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Finding the Fourth Proportional to 3,666.67, 5,059.99 and 1,988.07

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Solution

The fourth proportional to 3,666.67, 5,059.99 and 1,988.07 is: 2,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.67 : 5,059.99 = 1,988.07 : x
  2. Step 2: Convert to fraction form
    3,666.67/5,059.99 = 1,988.07/x
  3. Step 3: Cross multiply
    3,666.67x = 5,059.99 × 1,988.07
  4. Step 4: Simplify right side
    3,666.67x = 10,059,614.32
  5. Step 5: Solve for x
    x = 10,059,614.32/3,666.67
  6. Step 6: Final answer
    x = 2,743.53

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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.