Home / 3,309.40-4,566.81-1,817.28

Finding the Fourth Proportional to 3,309.40, 4,566.81 and 1,817.28

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Solution

The fourth proportional to 3,309.40, 4,566.81 and 1,817.28 is: 2,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.40 : 4,566.81 = 1,817.28 : x
  2. Step 2: Convert to fraction form
    3,309.40/4,566.81 = 1,817.28/x
  3. Step 3: Cross multiply
    3,309.40x = 4,566.81 × 1,817.28
  4. Step 4: Simplify right side
    3,309.40x = 8,299,179.29
  5. Step 5: Solve for x
    x = 8,299,179.29/3,309.40
  6. Step 6: Final answer
    x = 2,507.76

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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.