Home / 2,666.56-3,679.68-1,604.13

Finding the Fourth Proportional to 2,666.56, 3,679.68 and 1,604.13

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Solution

The fourth proportional to 2,666.56, 3,679.68 and 1,604.13 is: 2,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.56 : 3,679.68 = 1,604.13 : x
  2. Step 2: Convert to fraction form
    2,666.56/3,679.68 = 1,604.13/x
  3. Step 3: Cross multiply
    2,666.56x = 3,679.68 × 1,604.13
  4. Step 4: Simplify right side
    2,666.56x = 5,902,700.41
  5. Step 5: Solve for x
    x = 5,902,700.41/2,666.56
  6. Step 6: Final answer
    x = 2,213.60

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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.