Home / 2,666.85-3,679.45-1,604.47

Finding the Fourth Proportional to 2,666.85, 3,679.45 and 1,604.47

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Solution

The fourth proportional to 2,666.85, 3,679.45 and 1,604.47 is: 2,213.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.85 : 3,679.45 = 1,604.47 : x
  2. Step 2: Convert to fraction form
    2,666.85/3,679.45 = 1,604.47/x
  3. Step 3: Cross multiply
    2,666.85x = 3,679.45 × 1,604.47
  4. Step 4: Simplify right side
    2,666.85x = 5,903,567.14
  5. Step 5: Solve for x
    x = 5,903,567.14/2,666.85
  6. Step 6: Final answer
    x = 2,213.69

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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.