Home / 5,610.94-8,420.09-2,148.19

Finding the Fourth Proportional to 5,610.94, 8,420.09 and 2,148.19

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Solution

The fourth proportional to 5,610.94, 8,420.09 and 2,148.19 is: 3,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.94 : 8,420.09 = 2,148.19 : x
  2. Step 2: Convert to fraction form
    5,610.94/8,420.09 = 2,148.19/x
  3. Step 3: Cross multiply
    5,610.94x = 8,420.09 × 2,148.19
  4. Step 4: Simplify right side
    5,610.94x = 18,087,921.35
  5. Step 5: Solve for x
    x = 18,087,921.35/5,610.94
  6. Step 6: Final answer
    x = 3,223.69

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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.