Home / 2,116.24-3,174.48-729.64

Finding the Fourth Proportional to 2,116.24, 3,174.48 and 729.64

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Solution

The fourth proportional to 2,116.24, 3,174.48 and 729.64 is: 1,094.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.24 : 3,174.48 = 729.64 : x
  2. Step 2: Convert to fraction form
    2,116.24/3,174.48 = 729.64/x
  3. Step 3: Cross multiply
    2,116.24x = 3,174.48 × 729.64
  4. Step 4: Simplify right side
    2,116.24x = 2,316,227.59
  5. Step 5: Solve for x
    x = 2,316,227.59/2,116.24
  6. Step 6: Final answer
    x = 1,094.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.