Home / 2,230.45-3,345.24-649.35

Finding the Fourth Proportional to 2,230.45, 3,345.24 and 649.35

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Solution

The fourth proportional to 2,230.45, 3,345.24 and 649.35 is: 973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.45 : 3,345.24 = 649.35 : x
  2. Step 2: Convert to fraction form
    2,230.45/3,345.24 = 649.35/x
  3. Step 3: Cross multiply
    2,230.45x = 3,345.24 × 649.35
  4. Step 4: Simplify right side
    2,230.45x = 2,172,231.59
  5. Step 5: Solve for x
    x = 2,172,231.59/2,230.45
  6. Step 6: Final answer
    x = 973.90

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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.