Home / 2,927.80-4,389.54-2,146.96

Finding the Fourth Proportional to 2,927.80, 4,389.54 and 2,146.96

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Solution

The fourth proportional to 2,927.80, 4,389.54 and 2,146.96 is: 3,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.80 : 4,389.54 = 2,146.96 : x
  2. Step 2: Convert to fraction form
    2,927.80/4,389.54 = 2,146.96/x
  3. Step 3: Cross multiply
    2,927.80x = 4,389.54 × 2,146.96
  4. Step 4: Simplify right side
    2,927.80x = 9,424,166.80
  5. Step 5: Solve for x
    x = 9,424,166.80/2,927.80
  6. Step 6: Final answer
    x = 3,218.86

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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.