Home / 3,245.40-4,869.72-1,298.16

Finding the Fourth Proportional to 3,245.40, 4,869.72 and 1,298.16

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Solution

The fourth proportional to 3,245.40, 4,869.72 and 1,298.16 is: 1,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.40 : 4,869.72 = 1,298.16 : x
  2. Step 2: Convert to fraction form
    3,245.40/4,869.72 = 1,298.16/x
  3. Step 3: Cross multiply
    3,245.40x = 4,869.72 × 1,298.16
  4. Step 4: Simplify right side
    3,245.40x = 6,321,675.72
  5. Step 5: Solve for x
    x = 6,321,675.72/3,245.40
  6. Step 6: Final answer
    x = 1,947.89

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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.