Home / 4,213.10-6,320.87-1,291.83

Finding the Fourth Proportional to 4,213.10, 6,320.87 and 1,291.83

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Solution

The fourth proportional to 4,213.10, 6,320.87 and 1,291.83 is: 1,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.10 : 6,320.87 = 1,291.83 : x
  2. Step 2: Convert to fraction form
    4,213.10/6,320.87 = 1,291.83/x
  3. Step 3: Cross multiply
    4,213.10x = 6,320.87 × 1,291.83
  4. Step 4: Simplify right side
    4,213.10x = 8,165,483.03
  5. Step 5: Solve for x
    x = 8,165,483.03/4,213.10
  6. Step 6: Final answer
    x = 1,938.12

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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.