Home / 2,679.11-3,697.60-1,602.31

Finding the Fourth Proportional to 2,679.11, 3,697.60 and 1,602.31

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Solution

The fourth proportional to 2,679.11, 3,697.60 and 1,602.31 is: 2,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.11 : 3,697.60 = 1,602.31 : x
  2. Step 2: Convert to fraction form
    2,679.11/3,697.60 = 1,602.31/x
  3. Step 3: Cross multiply
    2,679.11x = 3,697.60 × 1,602.31
  4. Step 4: Simplify right side
    2,679.11x = 5,924,694.21
  5. Step 5: Solve for x
    x = 5,924,694.21/2,679.11
  6. Step 6: Final answer
    x = 2,211.45

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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.