Home / 2,351.40-3,244.78-1,407.76

Finding the Fourth Proportional to 2,351.40, 3,244.78 and 1,407.76

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Solution

The fourth proportional to 2,351.40, 3,244.78 and 1,407.76 is: 1,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.40 : 3,244.78 = 1,407.76 : x
  2. Step 2: Convert to fraction form
    2,351.40/3,244.78 = 1,407.76/x
  3. Step 3: Cross multiply
    2,351.40x = 3,244.78 × 1,407.76
  4. Step 4: Simplify right side
    2,351.40x = 4,567,871.49
  5. Step 5: Solve for x
    x = 4,567,871.49/2,351.40
  6. Step 6: Final answer
    x = 1,942.62

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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.