Home / 7,192.16-10,786.61-2,807.36

Finding the Fourth Proportional to 7,192.16, 10,786.61 and 2,807.36

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Solution

The fourth proportional to 7,192.16, 10,786.61 and 2,807.36 is: 4,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.16 : 10,786.61 = 2,807.36 : x
  2. Step 2: Convert to fraction form
    7,192.16/10,786.61 = 2,807.36/x
  3. Step 3: Cross multiply
    7,192.16x = 10,786.61 × 2,807.36
  4. Step 4: Simplify right side
    7,192.16x = 30,281,897.45
  5. Step 5: Solve for x
    x = 30,281,897.45/7,192.16
  6. Step 6: Final answer
    x = 4,210.40

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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.