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Finding the Fourth Proportional to 3,798.75, 5,700.83 and 1,490.25

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Solution

The fourth proportional to 3,798.75, 5,700.83 and 1,490.25 is: 2,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.75 : 5,700.83 = 1,490.25 : x
  2. Step 2: Convert to fraction form
    3,798.75/5,700.83 = 1,490.25/x
  3. Step 3: Cross multiply
    3,798.75x = 5,700.83 × 1,490.25
  4. Step 4: Simplify right side
    3,798.75x = 8,495,654.46
  5. Step 5: Solve for x
    x = 8,495,654.46/3,798.75
  6. Step 6: Final answer
    x = 2,236.43

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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.