Home / 4,807.20-6,631.20-3,039.60

Finding the Fourth Proportional to 4,807.20, 6,631.20 and 3,039.60

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Solution

The fourth proportional to 4,807.20, 6,631.20 and 3,039.60 is: 4,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.20 : 6,631.20 = 3,039.60 : x
  2. Step 2: Convert to fraction form
    4,807.20/6,631.20 = 3,039.60/x
  3. Step 3: Cross multiply
    4,807.20x = 6,631.20 × 3,039.60
  4. Step 4: Simplify right side
    4,807.20x = 20,156,195.52
  5. Step 5: Solve for x
    x = 20,156,195.52/4,807.20
  6. Step 6: Final answer
    x = 4,192.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.