Home / 5,628.20-8,443.55-2,118.23

Finding the Fourth Proportional to 5,628.20, 8,443.55 and 2,118.23

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Solution

The fourth proportional to 5,628.20, 8,443.55 and 2,118.23 is: 3,177.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.20 : 8,443.55 = 2,118.23 : x
  2. Step 2: Convert to fraction form
    5,628.20/8,443.55 = 2,118.23/x
  3. Step 3: Cross multiply
    5,628.20x = 8,443.55 × 2,118.23
  4. Step 4: Simplify right side
    5,628.20x = 17,885,328.11
  5. Step 5: Solve for x
    x = 17,885,328.11/5,628.20
  6. Step 6: Final answer
    x = 3,177.81

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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.