Home / 2,091.39-2,884.95-1,333.74

Finding the Fourth Proportional to 2,091.39, 2,884.95 and 1,333.74

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Solution

The fourth proportional to 2,091.39, 2,884.95 and 1,333.74 is: 1,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.39 : 2,884.95 = 1,333.74 : x
  2. Step 2: Convert to fraction form
    2,091.39/2,884.95 = 1,333.74/x
  3. Step 3: Cross multiply
    2,091.39x = 2,884.95 × 1,333.74
  4. Step 4: Simplify right side
    2,091.39x = 3,847,773.21
  5. Step 5: Solve for x
    x = 3,847,773.21/2,091.39
  6. Step 6: Final answer
    x = 1,839.82

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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.