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Finding the Fourth Proportional to 6,641.58, 9,963.45 and 1,962.06

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Solution

The fourth proportional to 6,641.58, 9,963.45 and 1,962.06 is: 2,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.58 : 9,963.45 = 1,962.06 : x
  2. Step 2: Convert to fraction form
    6,641.58/9,963.45 = 1,962.06/x
  3. Step 3: Cross multiply
    6,641.58x = 9,963.45 × 1,962.06
  4. Step 4: Simplify right side
    6,641.58x = 19,548,920.25
  5. Step 5: Solve for x
    x = 19,548,920.25/6,641.58
  6. Step 6: Final answer
    x = 2,943.41

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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.