Home / 3,610.12-4,970.80-2,861.68

Finding the Fourth Proportional to 3,610.12, 4,970.80 and 2,861.68

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Solution

The fourth proportional to 3,610.12, 4,970.80 and 2,861.68 is: 3,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.12 : 4,970.80 = 2,861.68 : x
  2. Step 2: Convert to fraction form
    3,610.12/4,970.80 = 2,861.68/x
  3. Step 3: Cross multiply
    3,610.12x = 4,970.80 × 2,861.68
  4. Step 4: Simplify right side
    3,610.12x = 14,224,838.94
  5. Step 5: Solve for x
    x = 14,224,838.94/3,610.12
  6. Step 6: Final answer
    x = 3,940.27

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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.