Home / 5,633.70-7,775.16-3,396.72

Finding the Fourth Proportional to 5,633.70, 7,775.16 and 3,396.72

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Solution

The fourth proportional to 5,633.70, 7,775.16 and 3,396.72 is: 4,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,633.70 : 7,775.16 = 3,396.72 : x
  2. Step 2: Convert to fraction form
    5,633.70/7,775.16 = 3,396.72/x
  3. Step 3: Cross multiply
    5,633.70x = 7,775.16 × 3,396.72
  4. Step 4: Simplify right side
    5,633.70x = 26,410,041.48
  5. Step 5: Solve for x
    x = 26,410,041.48/5,633.70
  6. Step 6: Final answer
    x = 4,687.87

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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.