Home / 1,790.30-2,469.49-1,458

Finding the Fourth Proportional to 1,790.30, 2,469.49 and 1,458

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Solution

The fourth proportional to 1,790.30, 2,469.49 and 1,458 is: 2,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.30 : 2,469.49 = 1,458 : x
  2. Step 2: Convert to fraction form
    1,790.30/2,469.49 = 1,458/x
  3. Step 3: Cross multiply
    1,790.30x = 2,469.49 × 1,458
  4. Step 4: Simplify right side
    1,790.30x = 3,600,512.78
  5. Step 5: Solve for x
    x = 3,600,512.78/1,790.30
  6. Step 6: Final answer
    x = 2,011.12

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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.