Home / 2,709-3,738.40-1,530.04

Finding the Fourth Proportional to 2,709, 3,738.40 and 1,530.04

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Solution

The fourth proportional to 2,709, 3,738.40 and 1,530.04 is: 2,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709 : 3,738.40 = 1,530.04 : x
  2. Step 2: Convert to fraction form
    2,709/3,738.40 = 1,530.04/x
  3. Step 3: Cross multiply
    2,709x = 3,738.40 × 1,530.04
  4. Step 4: Simplify right side
    2,709x = 5,719,901.54
  5. Step 5: Solve for x
    x = 5,719,901.54/2,709
  6. Step 6: Final answer
    x = 2,111.44

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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.