Home / 3,039.50-4,194.51-1,861.49

Finding the Fourth Proportional to 3,039.50, 4,194.51 and 1,861.49

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Solution

The fourth proportional to 3,039.50, 4,194.51 and 1,861.49 is: 2,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.50 : 4,194.51 = 1,861.49 : x
  2. Step 2: Convert to fraction form
    3,039.50/4,194.51 = 1,861.49/x
  3. Step 3: Cross multiply
    3,039.50x = 4,194.51 × 1,861.49
  4. Step 4: Simplify right side
    3,039.50x = 7,808,038.42
  5. Step 5: Solve for x
    x = 7,808,038.42/3,039.50
  6. Step 6: Final answer
    x = 2,568.86

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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.