Home / 4,157.12-6,230.81-1,688.64

Finding the Fourth Proportional to 4,157.12, 6,230.81 and 1,688.64

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Solution

The fourth proportional to 4,157.12, 6,230.81 and 1,688.64 is: 2,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,157.12 : 6,230.81 = 1,688.64 : x
  2. Step 2: Convert to fraction form
    4,157.12/6,230.81 = 1,688.64/x
  3. Step 3: Cross multiply
    4,157.12x = 6,230.81 × 1,688.64
  4. Step 4: Simplify right side
    4,157.12x = 10,521,586.56
  5. Step 5: Solve for x
    x = 10,521,586.56/4,157.12
  6. Step 6: Final answer
    x = 2,530.98

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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.