Home / 7,921.45-10,930.57-4,384.45

Finding the Fourth Proportional to 7,921.45, 10,930.57 and 4,384.45

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Solution

The fourth proportional to 7,921.45, 10,930.57 and 4,384.45 is: 6,049.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.45 : 10,930.57 = 4,384.45 : x
  2. Step 2: Convert to fraction form
    7,921.45/10,930.57 = 4,384.45/x
  3. Step 3: Cross multiply
    7,921.45x = 10,930.57 × 4,384.45
  4. Step 4: Simplify right side
    7,921.45x = 47,924,537.64
  5. Step 5: Solve for x
    x = 47,924,537.64/7,921.45
  6. Step 6: Final answer
    x = 6,049.97

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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.