Home / 1,790.34-2,447.70-1,722.30

Finding the Fourth Proportional to 1,790.34, 2,447.70 and 1,722.30

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Solution

The fourth proportional to 1,790.34, 2,447.70 and 1,722.30 is: 2,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.34 : 2,447.70 = 1,722.30 : x
  2. Step 2: Convert to fraction form
    1,790.34/2,447.70 = 1,722.30/x
  3. Step 3: Cross multiply
    1,790.34x = 2,447.70 × 1,722.30
  4. Step 4: Simplify right side
    1,790.34x = 4,215,673.71
  5. Step 5: Solve for x
    x = 4,215,673.71/1,790.34
  6. Step 6: Final answer
    x = 2,354.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.