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Finding the Fourth Proportional to 2,170.64, 3,255.86 and 589.42

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Solution

The fourth proportional to 2,170.64, 3,255.86 and 589.42 is: 884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.64 : 3,255.86 = 589.42 : x
  2. Step 2: Convert to fraction form
    2,170.64/3,255.86 = 589.42/x
  3. Step 3: Cross multiply
    2,170.64x = 3,255.86 × 589.42
  4. Step 4: Simplify right side
    2,170.64x = 1,919,069.00
  5. Step 5: Solve for x
    x = 1,919,069.00/2,170.64
  6. Step 6: Final answer
    x = 884.10

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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.