Home / 6,109.20-8,421.48-5,266.80

Finding the Fourth Proportional to 6,109.20, 8,421.48 and 5,266.80

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Solution

The fourth proportional to 6,109.20, 8,421.48 and 5,266.80 is: 7,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.20 : 8,421.48 = 5,266.80 : x
  2. Step 2: Convert to fraction form
    6,109.20/8,421.48 = 5,266.80/x
  3. Step 3: Cross multiply
    6,109.20x = 8,421.48 × 5,266.80
  4. Step 4: Simplify right side
    6,109.20x = 44,354,250.86
  5. Step 5: Solve for x
    x = 44,354,250.86/6,109.20
  6. Step 6: Final answer
    x = 7,260.24

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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.