Home / 3,913.22-5,869.88-1,316.16

Finding the Fourth Proportional to 3,913.22, 5,869.88 and 1,316.16

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Solution

The fourth proportional to 3,913.22, 5,869.88 and 1,316.16 is: 1,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.22 : 5,869.88 = 1,316.16 : x
  2. Step 2: Convert to fraction form
    3,913.22/5,869.88 = 1,316.16/x
  3. Step 3: Cross multiply
    3,913.22x = 5,869.88 × 1,316.16
  4. Step 4: Simplify right side
    3,913.22x = 7,725,704.55
  5. Step 5: Solve for x
    x = 7,725,704.55/3,913.22
  6. Step 6: Final answer
    x = 1,974.26

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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.