Home / 5,299.64-7,308.40-3,174.80

Finding the Fourth Proportional to 5,299.64, 7,308.40 and 3,174.80

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Solution

The fourth proportional to 5,299.64, 7,308.40 and 3,174.80 is: 4,378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.64 : 7,308.40 = 3,174.80 : x
  2. Step 2: Convert to fraction form
    5,299.64/7,308.40 = 3,174.80/x
  3. Step 3: Cross multiply
    5,299.64x = 7,308.40 × 3,174.80
  4. Step 4: Simplify right side
    5,299.64x = 23,202,708.32
  5. Step 5: Solve for x
    x = 23,202,708.32/5,299.64
  6. Step 6: Final answer
    x = 4,378.17

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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.