Home / 7,743.36-11,617.28-2,812.92

Finding the Fourth Proportional to 7,743.36, 11,617.28 and 2,812.92

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Solution

The fourth proportional to 7,743.36, 11,617.28 and 2,812.92 is: 4,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.36 : 11,617.28 = 2,812.92 : x
  2. Step 2: Convert to fraction form
    7,743.36/11,617.28 = 2,812.92/x
  3. Step 3: Cross multiply
    7,743.36x = 11,617.28 × 2,812.92
  4. Step 4: Simplify right side
    7,743.36x = 32,678,479.26
  5. Step 5: Solve for x
    x = 32,678,479.26/7,743.36
  6. Step 6: Final answer
    x = 4,220.19

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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.