Home / 3,709.85-5,120.90-2,294.63

Finding the Fourth Proportional to 3,709.85, 5,120.90 and 2,294.63

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Solution

The fourth proportional to 3,709.85, 5,120.90 and 2,294.63 is: 3,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.85 : 5,120.90 = 2,294.63 : x
  2. Step 2: Convert to fraction form
    3,709.85/5,120.90 = 2,294.63/x
  3. Step 3: Cross multiply
    3,709.85x = 5,120.90 × 2,294.63
  4. Step 4: Simplify right side
    3,709.85x = 11,750,533.69
  5. Step 5: Solve for x
    x = 11,750,533.69/3,709.85
  6. Step 6: Final answer
    x = 3,167.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.