Home / 5,318.16-7,976.64-1,619.58

Finding the Fourth Proportional to 5,318.16, 7,976.64 and 1,619.58

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Solution

The fourth proportional to 5,318.16, 7,976.64 and 1,619.58 is: 2,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.16 : 7,976.64 = 1,619.58 : x
  2. Step 2: Convert to fraction form
    5,318.16/7,976.64 = 1,619.58/x
  3. Step 3: Cross multiply
    5,318.16x = 7,976.64 × 1,619.58
  4. Step 4: Simplify right side
    5,318.16x = 12,918,806.61
  5. Step 5: Solve for x
    x = 12,918,806.61/5,318.16
  6. Step 6: Final answer
    x = 2,429.19

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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.