Home / 5,619.86-8,422.59-2,693.78

Finding the Fourth Proportional to 5,619.86, 8,422.59 and 2,693.78

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Solution

The fourth proportional to 5,619.86, 8,422.59 and 2,693.78 is: 4,037.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.86 : 8,422.59 = 2,693.78 : x
  2. Step 2: Convert to fraction form
    5,619.86/8,422.59 = 2,693.78/x
  3. Step 3: Cross multiply
    5,619.86x = 8,422.59 × 2,693.78
  4. Step 4: Simplify right side
    5,619.86x = 22,688,604.49
  5. Step 5: Solve for x
    x = 22,688,604.49/5,619.86
  6. Step 6: Final answer
    x = 4,037.22

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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.