Home / 3,213.10-4,814.78-2,387.50

Finding the Fourth Proportional to 3,213.10, 4,814.78 and 2,387.50

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Solution

The fourth proportional to 3,213.10, 4,814.78 and 2,387.50 is: 3,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.10 : 4,814.78 = 2,387.50 : x
  2. Step 2: Convert to fraction form
    3,213.10/4,814.78 = 2,387.50/x
  3. Step 3: Cross multiply
    3,213.10x = 4,814.78 × 2,387.50
  4. Step 4: Simplify right side
    3,213.10x = 11,495,287.25
  5. Step 5: Solve for x
    x = 11,495,287.25/3,213.10
  6. Step 6: Final answer
    x = 3,577.63

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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.