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Finding the Fourth Proportional to 1,621.44, 2,237.04 and 958.08

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Solution

The fourth proportional to 1,621.44, 2,237.04 and 958.08 is: 1,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.44 : 2,237.04 = 958.08 : x
  2. Step 2: Convert to fraction form
    1,621.44/2,237.04 = 958.08/x
  3. Step 3: Cross multiply
    1,621.44x = 2,237.04 × 958.08
  4. Step 4: Simplify right side
    1,621.44x = 2,143,263.28
  5. Step 5: Solve for x
    x = 2,143,263.28/1,621.44
  6. Step 6: Final answer
    x = 1,321.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.