Home / 6,623.02-9,929.80-3,111.06

Finding the Fourth Proportional to 6,623.02, 9,929.80 and 3,111.06

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Solution

The fourth proportional to 6,623.02, 9,929.80 and 3,111.06 is: 4,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.02 : 9,929.80 = 3,111.06 : x
  2. Step 2: Convert to fraction form
    6,623.02/9,929.80 = 3,111.06/x
  3. Step 3: Cross multiply
    6,623.02x = 9,929.80 × 3,111.06
  4. Step 4: Simplify right side
    6,623.02x = 30,892,203.59
  5. Step 5: Solve for x
    x = 30,892,203.59/6,623.02
  6. Step 6: Final answer
    x = 4,664.37

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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.