Home / 4,977.20-7,480.20-4,343.60

Finding the Fourth Proportional to 4,977.20, 7,480.20 and 4,343.60

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Solution

The fourth proportional to 4,977.20, 7,480.20 and 4,343.60 is: 6,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.20 : 7,480.20 = 4,343.60 : x
  2. Step 2: Convert to fraction form
    4,977.20/7,480.20 = 4,343.60/x
  3. Step 3: Cross multiply
    4,977.20x = 7,480.20 × 4,343.60
  4. Step 4: Simplify right side
    4,977.20x = 32,490,996.72
  5. Step 5: Solve for x
    x = 32,490,996.72/4,977.20
  6. Step 6: Final answer
    x = 6,527.97

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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.