Home / 5,155.45-7,732.32-1,456.84

Finding the Fourth Proportional to 5,155.45, 7,732.32 and 1,456.84

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Solution

The fourth proportional to 5,155.45, 7,732.32 and 1,456.84 is: 2,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.45 : 7,732.32 = 1,456.84 : x
  2. Step 2: Convert to fraction form
    5,155.45/7,732.32 = 1,456.84/x
  3. Step 3: Cross multiply
    5,155.45x = 7,732.32 × 1,456.84
  4. Step 4: Simplify right side
    5,155.45x = 11,264,707.12
  5. Step 5: Solve for x
    x = 11,264,707.12/5,155.45
  6. Step 6: Final answer
    x = 2,185.01

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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.