Home / 4,139.50-6,210.42-1,673.78

Finding the Fourth Proportional to 4,139.50, 6,210.42 and 1,673.78

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Solution

The fourth proportional to 4,139.50, 6,210.42 and 1,673.78 is: 2,511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.50 : 6,210.42 = 1,673.78 : x
  2. Step 2: Convert to fraction form
    4,139.50/6,210.42 = 1,673.78/x
  3. Step 3: Cross multiply
    4,139.50x = 6,210.42 × 1,673.78
  4. Step 4: Simplify right side
    4,139.50x = 10,394,876.79
  5. Step 5: Solve for x
    x = 10,394,876.79/4,139.50
  6. Step 6: Final answer
    x = 2,511.14

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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.