Home / 3,860.50-5,328.21-2,204.50

Finding the Fourth Proportional to 3,860.50, 5,328.21 and 2,204.50

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Solution

The fourth proportional to 3,860.50, 5,328.21 and 2,204.50 is: 3,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.50 : 5,328.21 = 2,204.50 : x
  2. Step 2: Convert to fraction form
    3,860.50/5,328.21 = 2,204.50/x
  3. Step 3: Cross multiply
    3,860.50x = 5,328.21 × 2,204.50
  4. Step 4: Simplify right side
    3,860.50x = 11,746,038.95
  5. Step 5: Solve for x
    x = 11,746,038.95/3,860.50
  6. Step 6: Final answer
    x = 3,042.62

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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.