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Finding the Fourth Proportional to 2,784.09, 4,176.15 and 935.35

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Solution

The fourth proportional to 2,784.09, 4,176.15 and 935.35 is: 1,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.09 : 4,176.15 = 935.35 : x
  2. Step 2: Convert to fraction form
    2,784.09/4,176.15 = 935.35/x
  3. Step 3: Cross multiply
    2,784.09x = 4,176.15 × 935.35
  4. Step 4: Simplify right side
    2,784.09x = 3,906,161.90
  5. Step 5: Solve for x
    x = 3,906,161.90/2,784.09
  6. Step 6: Final answer
    x = 1,403.03

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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.