Home / 4,230.20-6,345.30-4,157.30

Finding the Fourth Proportional to 4,230.20, 6,345.30 and 4,157.30

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Solution

The fourth proportional to 4,230.20, 6,345.30 and 4,157.30 is: 6,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.20 : 6,345.30 = 4,157.30 : x
  2. Step 2: Convert to fraction form
    4,230.20/6,345.30 = 4,157.30/x
  3. Step 3: Cross multiply
    4,230.20x = 6,345.30 × 4,157.30
  4. Step 4: Simplify right side
    4,230.20x = 26,379,315.69
  5. Step 5: Solve for x
    x = 26,379,315.69/4,230.20
  6. Step 6: Final answer
    x = 6,235.95

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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.