Home / 2,031.18-3,045.63-644.26

Finding the Fourth Proportional to 2,031.18, 3,045.63 and 644.26

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Solution

The fourth proportional to 2,031.18, 3,045.63 and 644.26 is: 966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.18 : 3,045.63 = 644.26 : x
  2. Step 2: Convert to fraction form
    2,031.18/3,045.63 = 644.26/x
  3. Step 3: Cross multiply
    2,031.18x = 3,045.63 × 644.26
  4. Step 4: Simplify right side
    2,031.18x = 1,962,169.97
  5. Step 5: Solve for x
    x = 1,962,169.97/2,031.18
  6. Step 6: Final answer
    x = 966.02

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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.