Home / 2,803.20-3,869.70-1,624.02

Finding the Fourth Proportional to 2,803.20, 3,869.70 and 1,624.02

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Solution

The fourth proportional to 2,803.20, 3,869.70 and 1,624.02 is: 2,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.20 : 3,869.70 = 1,624.02 : x
  2. Step 2: Convert to fraction form
    2,803.20/3,869.70 = 1,624.02/x
  3. Step 3: Cross multiply
    2,803.20x = 3,869.70 × 1,624.02
  4. Step 4: Simplify right side
    2,803.20x = 6,284,470.19
  5. Step 5: Solve for x
    x = 6,284,470.19/2,803.20
  6. Step 6: Final answer
    x = 2,241.89

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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.