Home / 4,821.20-7,234.20-2,711.50

Finding the Fourth Proportional to 4,821.20, 7,234.20 and 2,711.50

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Solution

The fourth proportional to 4,821.20, 7,234.20 and 2,711.50 is: 4,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.20 : 7,234.20 = 2,711.50 : x
  2. Step 2: Convert to fraction form
    4,821.20/7,234.20 = 2,711.50/x
  3. Step 3: Cross multiply
    4,821.20x = 7,234.20 × 2,711.50
  4. Step 4: Simplify right side
    4,821.20x = 19,615,533.30
  5. Step 5: Solve for x
    x = 19,615,533.30/4,821.20
  6. Step 6: Final answer
    x = 4,068.60

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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.