Home / 5,412.28-8,111.32-2,777.56

Finding the Fourth Proportional to 5,412.28, 8,111.32 and 2,777.56

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Solution

The fourth proportional to 5,412.28, 8,111.32 and 2,777.56 is: 4,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.28 : 8,111.32 = 2,777.56 : x
  2. Step 2: Convert to fraction form
    5,412.28/8,111.32 = 2,777.56/x
  3. Step 3: Cross multiply
    5,412.28x = 8,111.32 × 2,777.56
  4. Step 4: Simplify right side
    5,412.28x = 22,529,677.98
  5. Step 5: Solve for x
    x = 22,529,677.98/5,412.28
  6. Step 6: Final answer
    x = 4,162.70

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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.