Home / 7,977.74-11,966.43-2,430.91

Finding the Fourth Proportional to 7,977.74, 11,966.43 and 2,430.91

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Solution

The fourth proportional to 7,977.74, 11,966.43 and 2,430.91 is: 3,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.74 : 11,966.43 = 2,430.91 : x
  2. Step 2: Convert to fraction form
    7,977.74/11,966.43 = 2,430.91/x
  3. Step 3: Cross multiply
    7,977.74x = 11,966.43 × 2,430.91
  4. Step 4: Simplify right side
    7,977.74x = 29,089,338.43
  5. Step 5: Solve for x
    x = 29,089,338.43/7,977.74
  6. Step 6: Final answer
    x = 3,646.31

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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.