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Finding the Fourth Proportional to 2,030.40, 3,044.82 and 643.44

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Solution

The fourth proportional to 2,030.40, 3,044.82 and 643.44 is: 964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.40 : 3,044.82 = 643.44 : x
  2. Step 2: Convert to fraction form
    2,030.40/3,044.82 = 643.44/x
  3. Step 3: Cross multiply
    2,030.40x = 3,044.82 × 643.44
  4. Step 4: Simplify right side
    2,030.40x = 1,959,158.98
  5. Step 5: Solve for x
    x = 1,959,158.98/2,030.40
  6. Step 6: Final answer
    x = 964.91

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1.5x scale

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.