Home / 2,235.51-3,351.56-1,139.09

Finding the Fourth Proportional to 2,235.51, 3,351.56 and 1,139.09

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Solution

The fourth proportional to 2,235.51, 3,351.56 and 1,139.09 is: 1,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.51 : 3,351.56 = 1,139.09 : x
  2. Step 2: Convert to fraction form
    2,235.51/3,351.56 = 1,139.09/x
  3. Step 3: Cross multiply
    2,235.51x = 3,351.56 × 1,139.09
  4. Step 4: Simplify right side
    2,235.51x = 3,817,706.03
  5. Step 5: Solve for x
    x = 3,817,706.03/2,235.51
  6. Step 6: Final answer
    x = 1,707.76

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1.5x scale

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.