Home / 2,679.24-3,697.20-1,631.10

Finding the Fourth Proportional to 2,679.24, 3,697.20 and 1,631.10

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Solution

The fourth proportional to 2,679.24, 3,697.20 and 1,631.10 is: 2,250.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.24 : 3,697.20 = 1,631.10 : x
  2. Step 2: Convert to fraction form
    2,679.24/3,697.20 = 1,631.10/x
  3. Step 3: Cross multiply
    2,679.24x = 3,697.20 × 1,631.10
  4. Step 4: Simplify right side
    2,679.24x = 6,030,502.92
  5. Step 5: Solve for x
    x = 6,030,502.92/2,679.24
  6. Step 6: Final answer
    x = 2,250.83

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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.