Home / 4,777.15-7,161.64-1,813.92

Finding the Fourth Proportional to 4,777.15, 7,161.64 and 1,813.92

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Solution

The fourth proportional to 4,777.15, 7,161.64 and 1,813.92 is: 2,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.15 : 7,161.64 = 1,813.92 : x
  2. Step 2: Convert to fraction form
    4,777.15/7,161.64 = 1,813.92/x
  3. Step 3: Cross multiply
    4,777.15x = 7,161.64 × 1,813.92
  4. Step 4: Simplify right side
    4,777.15x = 12,990,635.88
  5. Step 5: Solve for x
    x = 12,990,635.88/4,777.15
  6. Step 6: Final answer
    x = 2,719.33

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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.