Home / 3,153.30-4,724.32-1,920.07

Finding the Fourth Proportional to 3,153.30, 4,724.32 and 1,920.07

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Solution

The fourth proportional to 3,153.30, 4,724.32 and 1,920.07 is: 2,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.30 : 4,724.32 = 1,920.07 : x
  2. Step 2: Convert to fraction form
    3,153.30/4,724.32 = 1,920.07/x
  3. Step 3: Cross multiply
    3,153.30x = 4,724.32 × 1,920.07
  4. Step 4: Simplify right side
    3,153.30x = 9,071,025.10
  5. Step 5: Solve for x
    x = 9,071,025.10/3,153.30
  6. Step 6: Final answer
    x = 2,876.68

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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.