Home / 2,931.05-4,397.82-1,944.21

Finding the Fourth Proportional to 2,931.05, 4,397.82 and 1,944.21

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Solution

The fourth proportional to 2,931.05, 4,397.82 and 1,944.21 is: 2,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.05 : 4,397.82 = 1,944.21 : x
  2. Step 2: Convert to fraction form
    2,931.05/4,397.82 = 1,944.21/x
  3. Step 3: Cross multiply
    2,931.05x = 4,397.82 × 1,944.21
  4. Step 4: Simplify right side
    2,931.05x = 8,550,288.64
  5. Step 5: Solve for x
    x = 8,550,288.64/2,931.05
  6. Step 6: Final answer
    x = 2,917.14

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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.