Home / 7,739.10-11,608.65-2,808.90

Finding the Fourth Proportional to 7,739.10, 11,608.65 and 2,808.90

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Solution

The fourth proportional to 7,739.10, 11,608.65 and 2,808.90 is: 4,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.10 : 11,608.65 = 2,808.90 : x
  2. Step 2: Convert to fraction form
    7,739.10/11,608.65 = 2,808.90/x
  3. Step 3: Cross multiply
    7,739.10x = 11,608.65 × 2,808.90
  4. Step 4: Simplify right side
    7,739.10x = 32,607,536.99
  5. Step 5: Solve for x
    x = 32,607,536.99/7,739.10
  6. Step 6: Final answer
    x = 4,213.35

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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.