Home / 3,057.13-4,217.72-1,861.63

Finding the Fourth Proportional to 3,057.13, 4,217.72 and 1,861.63

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Solution

The fourth proportional to 3,057.13, 4,217.72 and 1,861.63 is: 2,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.13 : 4,217.72 = 1,861.63 : x
  2. Step 2: Convert to fraction form
    3,057.13/4,217.72 = 1,861.63/x
  3. Step 3: Cross multiply
    3,057.13x = 4,217.72 × 1,861.63
  4. Step 4: Simplify right side
    3,057.13x = 7,851,821.74
  5. Step 5: Solve for x
    x = 7,851,821.74/3,057.13
  6. Step 6: Final answer
    x = 2,568.36

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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.