Home / 7,728.28-10,665.30-4,371.46

Finding the Fourth Proportional to 7,728.28, 10,665.30 and 4,371.46

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Solution

The fourth proportional to 7,728.28, 10,665.30 and 4,371.46 is: 6,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.28 : 10,665.30 = 4,371.46 : x
  2. Step 2: Convert to fraction form
    7,728.28/10,665.30 = 4,371.46/x
  3. Step 3: Cross multiply
    7,728.28x = 10,665.30 × 4,371.46
  4. Step 4: Simplify right side
    7,728.28x = 46,622,932.34
  5. Step 5: Solve for x
    x = 46,622,932.34/7,728.28
  6. Step 6: Final answer
    x = 6,032.77

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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.