Home / 2,127.06-3,190.39-666.23

Finding the Fourth Proportional to 2,127.06, 3,190.39 and 666.23

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Solution

The fourth proportional to 2,127.06, 3,190.39 and 666.23 is: 999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.06 : 3,190.39 = 666.23 : x
  2. Step 2: Convert to fraction form
    2,127.06/3,190.39 = 666.23/x
  3. Step 3: Cross multiply
    2,127.06x = 3,190.39 × 666.23
  4. Step 4: Simplify right side
    2,127.06x = 2,125,515.91
  5. Step 5: Solve for x
    x = 2,125,515.91/2,127.06
  6. Step 6: Final answer
    x = 999.27

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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.