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Finding the Fourth Proportional to 3,295.76, 4,943.62 and 987.26

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Solution

The fourth proportional to 3,295.76, 4,943.62 and 987.26 is: 1,480.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,295.76 : 4,943.62 = 987.26 : x
  2. Step 2: Convert to fraction form
    3,295.76/4,943.62 = 987.26/x
  3. Step 3: Cross multiply
    3,295.76x = 4,943.62 × 987.26
  4. Step 4: Simplify right side
    3,295.76x = 4,880,638.28
  5. Step 5: Solve for x
    x = 4,880,638.28/3,295.76
  6. Step 6: Final answer
    x = 1,480.88

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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.