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Finding the Fourth Proportional to 1,958.16, 2,900.60 and 1,936.32

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Solution

The fourth proportional to 1,958.16, 2,900.60 and 1,936.32 is: 2,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.16 : 2,900.60 = 1,936.32 : x
  2. Step 2: Convert to fraction form
    1,958.16/2,900.60 = 1,936.32/x
  3. Step 3: Cross multiply
    1,958.16x = 2,900.60 × 1,936.32
  4. Step 4: Simplify right side
    1,958.16x = 5,616,489.79
  5. Step 5: Solve for x
    x = 5,616,489.79/1,958.16
  6. Step 6: Final answer
    x = 2,868.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.