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Finding the Fourth Proportional to 2,203.07, 3,304.55 and 643.01

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Solution

The fourth proportional to 2,203.07, 3,304.55 and 643.01 is: 964.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.07 : 3,304.55 = 643.01 : x
  2. Step 2: Convert to fraction form
    2,203.07/3,304.55 = 643.01/x
  3. Step 3: Cross multiply
    2,203.07x = 3,304.55 × 643.01
  4. Step 4: Simplify right side
    2,203.07x = 2,124,856.17
  5. Step 5: Solve for x
    x = 2,124,856.17/2,203.07
  6. Step 6: Final answer
    x = 964.50

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Double scale
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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.