Home / 7,705.20-11,550.86-2,773.68

Finding the Fourth Proportional to 7,705.20, 11,550.86 and 2,773.68

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Solution

The fourth proportional to 7,705.20, 11,550.86 and 2,773.68 is: 4,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.20 : 11,550.86 = 2,773.68 : x
  2. Step 2: Convert to fraction form
    7,705.20/11,550.86 = 2,773.68/x
  3. Step 3: Cross multiply
    7,705.20x = 11,550.86 × 2,773.68
  4. Step 4: Simplify right side
    7,705.20x = 32,038,389.36
  5. Step 5: Solve for x
    x = 32,038,389.36/7,705.20
  6. Step 6: Final answer
    x = 4,158.02

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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.