Home / 1,960.40-2,954.08-1,621.35

Finding the Fourth Proportional to 1,960.40, 2,954.08 and 1,621.35

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Solution

The fourth proportional to 1,960.40, 2,954.08 and 1,621.35 is: 2,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.40 : 2,954.08 = 1,621.35 : x
  2. Step 2: Convert to fraction form
    1,960.40/2,954.08 = 1,621.35/x
  3. Step 3: Cross multiply
    1,960.40x = 2,954.08 × 1,621.35
  4. Step 4: Simplify right side
    1,960.40x = 4,789,593.55
  5. Step 5: Solve for x
    x = 4,789,593.55/1,960.40
  6. Step 6: Final answer
    x = 2,443.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.