Home / 5,356.90-8,021.37-4,311.19

Finding the Fourth Proportional to 5,356.90, 8,021.37 and 4,311.19

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Solution

The fourth proportional to 5,356.90, 8,021.37 and 4,311.19 is: 6,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.90 : 8,021.37 = 4,311.19 : x
  2. Step 2: Convert to fraction form
    5,356.90/8,021.37 = 4,311.19/x
  3. Step 3: Cross multiply
    5,356.90x = 8,021.37 × 4,311.19
  4. Step 4: Simplify right side
    5,356.90x = 34,581,650.13
  5. Step 5: Solve for x
    x = 34,581,650.13/5,356.90
  6. Step 6: Final answer
    x = 6,455.53

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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.