Home / 7,830.13-11,744.05-2,281.99

Finding the Fourth Proportional to 7,830.13, 11,744.05 and 2,281.99

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Solution

The fourth proportional to 7,830.13, 11,744.05 and 2,281.99 is: 3,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.13 : 11,744.05 = 2,281.99 : x
  2. Step 2: Convert to fraction form
    7,830.13/11,744.05 = 2,281.99/x
  3. Step 3: Cross multiply
    7,830.13x = 11,744.05 × 2,281.99
  4. Step 4: Simplify right side
    7,830.13x = 26,799,804.66
  5. Step 5: Solve for x
    x = 26,799,804.66/7,830.13
  6. Step 6: Final answer
    x = 3,422.65

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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.