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Finding the Fourth Proportional to 1,873.97, 2,811.08 and 948.88

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Solution

The fourth proportional to 1,873.97, 2,811.08 and 948.88 is: 1,423.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.97 : 2,811.08 = 948.88 : x
  2. Step 2: Convert to fraction form
    1,873.97/2,811.08 = 948.88/x
  3. Step 3: Cross multiply
    1,873.97x = 2,811.08 × 948.88
  4. Step 4: Simplify right side
    1,873.97x = 2,667,377.59
  5. Step 5: Solve for x
    x = 2,667,377.59/1,873.97
  6. Step 6: Final answer
    x = 1,423.38

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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.