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Finding the Fourth Proportional to 2,380.12, 3,570.06 and 993.16

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Solution

The fourth proportional to 2,380.12, 3,570.06 and 993.16 is: 1,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.12 : 3,570.06 = 993.16 : x
  2. Step 2: Convert to fraction form
    2,380.12/3,570.06 = 993.16/x
  3. Step 3: Cross multiply
    2,380.12x = 3,570.06 × 993.16
  4. Step 4: Simplify right side
    2,380.12x = 3,545,640.79
  5. Step 5: Solve for x
    x = 3,545,640.79/2,380.12
  6. Step 6: Final answer
    x = 1,489.69

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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.