Home / 4,949.20-7,423.70-1,988.94

Finding the Fourth Proportional to 4,949.20, 7,423.70 and 1,988.94

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Solution

The fourth proportional to 4,949.20, 7,423.70 and 1,988.94 is: 2,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.20 : 7,423.70 = 1,988.94 : x
  2. Step 2: Convert to fraction form
    4,949.20/7,423.70 = 1,988.94/x
  3. Step 3: Cross multiply
    4,949.20x = 7,423.70 × 1,988.94
  4. Step 4: Simplify right side
    4,949.20x = 14,765,293.88
  5. Step 5: Solve for x
    x = 14,765,293.88/4,949.20
  6. Step 6: Final answer
    x = 2,983.37

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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.