Home / 2,783.29-4,172.19-1,551.28

Finding the Fourth Proportional to 2,783.29, 4,172.19 and 1,551.28

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Solution

The fourth proportional to 2,783.29, 4,172.19 and 1,551.28 is: 2,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.29 : 4,172.19 = 1,551.28 : x
  2. Step 2: Convert to fraction form
    2,783.29/4,172.19 = 1,551.28/x
  3. Step 3: Cross multiply
    2,783.29x = 4,172.19 × 1,551.28
  4. Step 4: Simplify right side
    2,783.29x = 6,472,234.90
  5. Step 5: Solve for x
    x = 6,472,234.90/2,783.29
  6. Step 6: Final answer
    x = 2,325.39

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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.