Home / 4,847.40-7,271.10-4,309.80

Finding the Fourth Proportional to 4,847.40, 7,271.10 and 4,309.80

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Solution

The fourth proportional to 4,847.40, 7,271.10 and 4,309.80 is: 6,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,847.40 : 7,271.10 = 4,309.80 : x
  2. Step 2: Convert to fraction form
    4,847.40/7,271.10 = 4,309.80/x
  3. Step 3: Cross multiply
    4,847.40x = 7,271.10 × 4,309.80
  4. Step 4: Simplify right side
    4,847.40x = 31,336,986.78
  5. Step 5: Solve for x
    x = 31,336,986.78/4,847.40
  6. Step 6: Final answer
    x = 6,464.70

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Similar ratio
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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.