Home / 5,409.18-8,108.91-1,944

Finding the Fourth Proportional to 5,409.18, 8,108.91 and 1,944

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Solution

The fourth proportional to 5,409.18, 8,108.91 and 1,944 is: 2,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.18 : 8,108.91 = 1,944 : x
  2. Step 2: Convert to fraction form
    5,409.18/8,108.91 = 1,944/x
  3. Step 3: Cross multiply
    5,409.18x = 8,108.91 × 1,944
  4. Step 4: Simplify right side
    5,409.18x = 15,763,721.04
  5. Step 5: Solve for x
    x = 15,763,721.04/5,409.18
  6. Step 6: Final answer
    x = 2,914.25

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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.