Home / 5,475.45-8,212.40-1,777.72

Finding the Fourth Proportional to 5,475.45, 8,212.40 and 1,777.72

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Solution

The fourth proportional to 5,475.45, 8,212.40 and 1,777.72 is: 2,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.45 : 8,212.40 = 1,777.72 : x
  2. Step 2: Convert to fraction form
    5,475.45/8,212.40 = 1,777.72/x
  3. Step 3: Cross multiply
    5,475.45x = 8,212.40 × 1,777.72
  4. Step 4: Simplify right side
    5,475.45x = 14,599,353.55
  5. Step 5: Solve for x
    x = 14,599,353.55/5,475.45
  6. Step 6: Final answer
    x = 2,666.33

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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.