Home / 7,977.77-11,968.39-2,430.96

Finding the Fourth Proportional to 7,977.77, 11,968.39 and 2,430.96

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Solution

The fourth proportional to 7,977.77, 11,968.39 and 2,430.96 is: 3,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.77 : 11,968.39 = 2,430.96 : x
  2. Step 2: Convert to fraction form
    7,977.77/11,968.39 = 2,430.96/x
  3. Step 3: Cross multiply
    7,977.77x = 11,968.39 × 2,430.96
  4. Step 4: Simplify right side
    7,977.77x = 29,094,652.15
  5. Step 5: Solve for x
    x = 29,094,652.15/7,977.77
  6. Step 6: Final answer
    x = 3,646.97

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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.