Home / 2,030.49-3,046.08-643.80

Finding the Fourth Proportional to 2,030.49, 3,046.08 and 643.80

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Solution

The fourth proportional to 2,030.49, 3,046.08 and 643.80 is: 965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.49 : 3,046.08 = 643.80 : x
  2. Step 2: Convert to fraction form
    2,030.49/3,046.08 = 643.80/x
  3. Step 3: Cross multiply
    2,030.49x = 3,046.08 × 643.80
  4. Step 4: Simplify right side
    2,030.49x = 1,961,066.30
  5. Step 5: Solve for x
    x = 1,961,066.30/2,030.49
  6. Step 6: Final answer
    x = 965.81

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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.