Home / 5,009.92-7,513.36-1,721.12

Finding the Fourth Proportional to 5,009.92, 7,513.36 and 1,721.12

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Solution

The fourth proportional to 5,009.92, 7,513.36 and 1,721.12 is: 2,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.92 : 7,513.36 = 1,721.12 : x
  2. Step 2: Convert to fraction form
    5,009.92/7,513.36 = 1,721.12/x
  3. Step 3: Cross multiply
    5,009.92x = 7,513.36 × 1,721.12
  4. Step 4: Simplify right side
    5,009.92x = 12,931,394.16
  5. Step 5: Solve for x
    x = 12,931,394.16/5,009.92
  6. Step 6: Final answer
    x = 2,581.16

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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.