Home / 4,612.20-6,914.10-1,689.80

Finding the Fourth Proportional to 4,612.20, 6,914.10 and 1,689.80

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Solution

The fourth proportional to 4,612.20, 6,914.10 and 1,689.80 is: 2,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.20 : 6,914.10 = 1,689.80 : x
  2. Step 2: Convert to fraction form
    4,612.20/6,914.10 = 1,689.80/x
  3. Step 3: Cross multiply
    4,612.20x = 6,914.10 × 1,689.80
  4. Step 4: Simplify right side
    4,612.20x = 11,683,446.18
  5. Step 5: Solve for x
    x = 11,683,446.18/4,612.20
  6. Step 6: Final answer
    x = 2,533.16

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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.