Home / 1,790.07-2,682.51-1,271.09

Finding the Fourth Proportional to 1,790.07, 2,682.51 and 1,271.09

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Solution

The fourth proportional to 1,790.07, 2,682.51 and 1,271.09 is: 1,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.07 : 2,682.51 = 1,271.09 : x
  2. Step 2: Convert to fraction form
    1,790.07/2,682.51 = 1,271.09/x
  3. Step 3: Cross multiply
    1,790.07x = 2,682.51 × 1,271.09
  4. Step 4: Simplify right side
    1,790.07x = 3,409,714.81
  5. Step 5: Solve for x
    x = 3,409,714.81/1,790.07
  6. Step 6: Final answer
    x = 1,904.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.