Home / 6,664.48-9,985.77-2,279.54

Finding the Fourth Proportional to 6,664.48, 9,985.77 and 2,279.54

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Solution

The fourth proportional to 6,664.48, 9,985.77 and 2,279.54 is: 3,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.48 : 9,985.77 = 2,279.54 : x
  2. Step 2: Convert to fraction form
    6,664.48/9,985.77 = 2,279.54/x
  3. Step 3: Cross multiply
    6,664.48x = 9,985.77 × 2,279.54
  4. Step 4: Simplify right side
    6,664.48x = 22,762,987.11
  5. Step 5: Solve for x
    x = 22,762,987.11/6,664.48
  6. Step 6: Final answer
    x = 3,415.57

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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.