Home / 4,325.28-6,490.55-1,728

Finding the Fourth Proportional to 4,325.28, 6,490.55 and 1,728

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Solution

The fourth proportional to 4,325.28, 6,490.55 and 1,728 is: 2,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325.28 : 6,490.55 = 1,728 : x
  2. Step 2: Convert to fraction form
    4,325.28/6,490.55 = 1,728/x
  3. Step 3: Cross multiply
    4,325.28x = 6,490.55 × 1,728
  4. Step 4: Simplify right side
    4,325.28x = 11,215,661.76
  5. Step 5: Solve for x
    x = 11,215,661.76/4,325.28
  6. Step 6: Final answer
    x = 2,593.05

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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.