Home / 4,509.90-6,220.26-3,978.27

Finding the Fourth Proportional to 4,509.90, 6,220.26 and 3,978.27

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Solution

The fourth proportional to 4,509.90, 6,220.26 and 3,978.27 is: 5,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.90 : 6,220.26 = 3,978.27 : x
  2. Step 2: Convert to fraction form
    4,509.90/6,220.26 = 3,978.27/x
  3. Step 3: Cross multiply
    4,509.90x = 6,220.26 × 3,978.27
  4. Step 4: Simplify right side
    4,509.90x = 24,745,873.75
  5. Step 5: Solve for x
    x = 24,745,873.75/4,509.90
  6. Step 6: Final answer
    x = 5,487.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.