Home / 7,921.02-10,930.64-4,384.02

Finding the Fourth Proportional to 7,921.02, 10,930.64 and 4,384.02

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Solution

The fourth proportional to 7,921.02, 10,930.64 and 4,384.02 is: 6,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.02 : 10,930.64 = 4,384.02 : x
  2. Step 2: Convert to fraction form
    7,921.02/10,930.64 = 4,384.02/x
  3. Step 3: Cross multiply
    7,921.02x = 10,930.64 × 4,384.02
  4. Step 4: Simplify right side
    7,921.02x = 47,920,144.37
  5. Step 5: Solve for x
    x = 47,920,144.37/7,921.02
  6. Step 6: Final answer
    x = 6,049.74

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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.