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Finding the Fourth Proportional to 3,325.58, 4,988.58 and 1,680.20

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Solution

The fourth proportional to 3,325.58, 4,988.58 and 1,680.20 is: 2,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.58 : 4,988.58 = 1,680.20 : x
  2. Step 2: Convert to fraction form
    3,325.58/4,988.58 = 1,680.20/x
  3. Step 3: Cross multiply
    3,325.58x = 4,988.58 × 1,680.20
  4. Step 4: Simplify right side
    3,325.58x = 8,381,812.12
  5. Step 5: Solve for x
    x = 8,381,812.12/3,325.58
  6. Step 6: Final answer
    x = 2,520.41

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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.