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Finding the Fourth Proportional to 1,911.96, 2,867.73 and 935.10

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Solution

The fourth proportional to 1,911.96, 2,867.73 and 935.10 is: 1,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.96 : 2,867.73 = 935.10 : x
  2. Step 2: Convert to fraction form
    1,911.96/2,867.73 = 935.10/x
  3. Step 3: Cross multiply
    1,911.96x = 2,867.73 × 935.10
  4. Step 4: Simplify right side
    1,911.96x = 2,681,614.32
  5. Step 5: Solve for x
    x = 2,681,614.32/1,911.96
  6. Step 6: Final answer
    x = 1,402.55

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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.