Home / 3,206.90-4,811.70-1,747.10

Finding the Fourth Proportional to 3,206.90, 4,811.70 and 1,747.10

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Solution

The fourth proportional to 3,206.90, 4,811.70 and 1,747.10 is: 2,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.90 : 4,811.70 = 1,747.10 : x
  2. Step 2: Convert to fraction form
    3,206.90/4,811.70 = 1,747.10/x
  3. Step 3: Cross multiply
    3,206.90x = 4,811.70 × 1,747.10
  4. Step 4: Simplify right side
    3,206.90x = 8,406,521.07
  5. Step 5: Solve for x
    x = 8,406,521.07/3,206.90
  6. Step 6: Final answer
    x = 2,621.39

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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.