Home / 5,810.48-8,721.20-2,116.28

Finding the Fourth Proportional to 5,810.48, 8,721.20 and 2,116.28

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Solution

The fourth proportional to 5,810.48, 8,721.20 and 2,116.28 is: 3,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.48 : 8,721.20 = 2,116.28 : x
  2. Step 2: Convert to fraction form
    5,810.48/8,721.20 = 2,116.28/x
  3. Step 3: Cross multiply
    5,810.48x = 8,721.20 × 2,116.28
  4. Step 4: Simplify right side
    5,810.48x = 18,456,501.14
  5. Step 5: Solve for x
    x = 18,456,501.14/5,810.48
  6. Step 6: Final answer
    x = 3,176.42

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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.