Home / 4,230.20-6,345.30-2,847.80

Finding the Fourth Proportional to 4,230.20, 6,345.30 and 2,847.80

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Solution

The fourth proportional to 4,230.20, 6,345.30 and 2,847.80 is: 4,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.20 : 6,345.30 = 2,847.80 : x
  2. Step 2: Convert to fraction form
    4,230.20/6,345.30 = 2,847.80/x
  3. Step 3: Cross multiply
    4,230.20x = 6,345.30 × 2,847.80
  4. Step 4: Simplify right side
    4,230.20x = 18,070,145.34
  5. Step 5: Solve for x
    x = 18,070,145.34/4,230.20
  6. Step 6: Final answer
    x = 4,271.70

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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.