Home / 2,036.90-3,054.20-649.91

Finding the Fourth Proportional to 2,036.90, 3,054.20 and 649.91

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Solution

The fourth proportional to 2,036.90, 3,054.20 and 649.91 is: 974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,036.90 : 3,054.20 = 649.91 : x
  2. Step 2: Convert to fraction form
    2,036.90/3,054.20 = 649.91/x
  3. Step 3: Cross multiply
    2,036.90x = 3,054.20 × 649.91
  4. Step 4: Simplify right side
    2,036.90x = 1,984,936.60
  5. Step 5: Solve for x
    x = 1,984,936.60/2,036.90
  6. Step 6: Final answer
    x = 974.49

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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.