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Finding the Fourth Proportional to 3,760.96, 5,640.16 and 2,030.40

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Solution

The fourth proportional to 3,760.96, 5,640.16 and 2,030.40 is: 3,044.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.96 : 5,640.16 = 2,030.40 : x
  2. Step 2: Convert to fraction form
    3,760.96/5,640.16 = 2,030.40/x
  3. Step 3: Cross multiply
    3,760.96x = 5,640.16 × 2,030.40
  4. Step 4: Simplify right side
    3,760.96x = 11,451,780.86
  5. Step 5: Solve for x
    x = 11,451,780.86/3,760.96
  6. Step 6: Final answer
    x = 3,044.91

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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.