Home / 4,420.50-6,630.75-1,643.97

Finding the Fourth Proportional to 4,420.50, 6,630.75 and 1,643.97

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Solution

The fourth proportional to 4,420.50, 6,630.75 and 1,643.97 is: 2,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.50 : 6,630.75 = 1,643.97 : x
  2. Step 2: Convert to fraction form
    4,420.50/6,630.75 = 1,643.97/x
  3. Step 3: Cross multiply
    4,420.50x = 6,630.75 × 1,643.97
  4. Step 4: Simplify right side
    4,420.50x = 10,900,754.08
  5. Step 5: Solve for x
    x = 10,900,754.08/4,420.50
  6. Step 6: Final answer
    x = 2,465.96

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Double scale
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Similar ratio
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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.