Home / 7,921.88-10,930.74-4,564.22

Finding the Fourth Proportional to 7,921.88, 10,930.74 and 4,564.22

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Solution

The fourth proportional to 7,921.88, 10,930.74 and 4,564.22 is: 6,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.88 : 10,930.74 = 4,564.22 : x
  2. Step 2: Convert to fraction form
    7,921.88/10,930.74 = 4,564.22/x
  3. Step 3: Cross multiply
    7,921.88x = 10,930.74 × 4,564.22
  4. Step 4: Simplify right side
    7,921.88x = 49,890,302.12
  5. Step 5: Solve for x
    x = 49,890,302.12/7,921.88
  6. Step 6: Final answer
    x = 6,297.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.