Home / 5,125.21-7,688.89-1,662.19

Finding the Fourth Proportional to 5,125.21, 7,688.89 and 1,662.19

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Solution

The fourth proportional to 5,125.21, 7,688.89 and 1,662.19 is: 2,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.21 : 7,688.89 = 1,662.19 : x
  2. Step 2: Convert to fraction form
    5,125.21/7,688.89 = 1,662.19/x
  3. Step 3: Cross multiply
    5,125.21x = 7,688.89 × 1,662.19
  4. Step 4: Simplify right side
    5,125.21x = 12,780,378.92
  5. Step 5: Solve for x
    x = 12,780,378.92/5,125.21
  6. Step 6: Final answer
    x = 2,493.63

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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.