Home / 3,600.86-4,970.70-2,806.31

Finding the Fourth Proportional to 3,600.86, 4,970.70 and 2,806.31

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Solution

The fourth proportional to 3,600.86, 4,970.70 and 2,806.31 is: 3,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.86 : 4,970.70 = 2,806.31 : x
  2. Step 2: Convert to fraction form
    3,600.86/4,970.70 = 2,806.31/x
  3. Step 3: Cross multiply
    3,600.86x = 4,970.70 × 2,806.31
  4. Step 4: Simplify right side
    3,600.86x = 13,949,337.54
  5. Step 5: Solve for x
    x = 13,949,337.54/3,600.86
  6. Step 6: Final answer
    x = 3,873.90

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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.