Home / 2,292.78-3,439.23-649.50

Finding the Fourth Proportional to 2,292.78, 3,439.23 and 649.50

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Solution

The fourth proportional to 2,292.78, 3,439.23 and 649.50 is: 974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.78 : 3,439.23 = 649.50 : x
  2. Step 2: Convert to fraction form
    2,292.78/3,439.23 = 649.50/x
  3. Step 3: Cross multiply
    2,292.78x = 3,439.23 × 649.50
  4. Step 4: Simplify right side
    2,292.78x = 2,233,779.89
  5. Step 5: Solve for x
    x = 2,233,779.89/2,292.78
  6. Step 6: Final answer
    x = 974.27

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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.