Home / 7,619.13-11,423.46-2,620.17

Finding the Fourth Proportional to 7,619.13, 11,423.46 and 2,620.17

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Solution

The fourth proportional to 7,619.13, 11,423.46 and 2,620.17 is: 3,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.13 : 11,423.46 = 2,620.17 : x
  2. Step 2: Convert to fraction form
    7,619.13/11,423.46 = 2,620.17/x
  3. Step 3: Cross multiply
    7,619.13x = 11,423.46 × 2,620.17
  4. Step 4: Simplify right side
    7,619.13x = 29,931,407.19
  5. Step 5: Solve for x
    x = 29,931,407.19/7,619.13
  6. Step 6: Final answer
    x = 3,928.45

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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.