Home / 7,716.04-11,580.88-3,970.45

Finding the Fourth Proportional to 7,716.04, 11,580.88 and 3,970.45

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Solution

The fourth proportional to 7,716.04, 11,580.88 and 3,970.45 is: 5,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.04 : 11,580.88 = 3,970.45 : x
  2. Step 2: Convert to fraction form
    7,716.04/11,580.88 = 3,970.45/x
  3. Step 3: Cross multiply
    7,716.04x = 11,580.88 × 3,970.45
  4. Step 4: Simplify right side
    7,716.04x = 45,981,285.14
  5. Step 5: Solve for x
    x = 45,981,285.14/7,716.04
  6. Step 6: Final answer
    x = 5,959.19

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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.