Home / 1,790.10-2,469.08-1,260.09

Finding the Fourth Proportional to 1,790.10, 2,469.08 and 1,260.09

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Solution

The fourth proportional to 1,790.10, 2,469.08 and 1,260.09 is: 1,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.10 : 2,469.08 = 1,260.09 : x
  2. Step 2: Convert to fraction form
    1,790.10/2,469.08 = 1,260.09/x
  3. Step 3: Cross multiply
    1,790.10x = 2,469.08 × 1,260.09
  4. Step 4: Simplify right side
    1,790.10x = 3,111,266.17
  5. Step 5: Solve for x
    x = 3,111,266.17/1,790.10
  6. Step 6: Final answer
    x = 1,738.04

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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.