Home / 5,550.78-8,315.19-4,165.68

Finding the Fourth Proportional to 5,550.78, 8,315.19 and 4,165.68

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Solution

The fourth proportional to 5,550.78, 8,315.19 and 4,165.68 is: 6,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.78 : 8,315.19 = 4,165.68 : x
  2. Step 2: Convert to fraction form
    5,550.78/8,315.19 = 4,165.68/x
  3. Step 3: Cross multiply
    5,550.78x = 8,315.19 × 4,165.68
  4. Step 4: Simplify right side
    5,550.78x = 34,638,420.68
  5. Step 5: Solve for x
    x = 34,638,420.68/5,550.78
  6. Step 6: Final answer
    x = 6,240.28

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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.