Home / 7,707.50-11,561.86-2,777.64

Finding the Fourth Proportional to 7,707.50, 11,561.86 and 2,777.64

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Solution

The fourth proportional to 7,707.50, 11,561.86 and 2,777.64 is: 4,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.50 : 11,561.86 = 2,777.64 : x
  2. Step 2: Convert to fraction form
    7,707.50/11,561.86 = 2,777.64/x
  3. Step 3: Cross multiply
    7,707.50x = 11,561.86 × 2,777.64
  4. Step 4: Simplify right side
    7,707.50x = 32,114,684.81
  5. Step 5: Solve for x
    x = 32,114,684.81/7,707.50
  6. Step 6: Final answer
    x = 4,166.68

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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.