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Finding the Fourth Proportional to 2,030.00, 3,045.01 and 644.31

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Solution

The fourth proportional to 2,030.00, 3,045.01 and 644.31 is: 966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.00 : 3,045.01 = 644.31 : x
  2. Step 2: Convert to fraction form
    2,030.00/3,045.01 = 644.31/x
  3. Step 3: Cross multiply
    2,030.00x = 3,045.01 × 644.31
  4. Step 4: Simplify right side
    2,030.00x = 1,961,929.99
  5. Step 5: Solve for x
    x = 1,961,929.99/2,030.00
  6. Step 6: Final answer
    x = 966.47

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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.