Home / 1,901.74-2,622.75-1,238.35

Finding the Fourth Proportional to 1,901.74, 2,622.75 and 1,238.35

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Solution

The fourth proportional to 1,901.74, 2,622.75 and 1,238.35 is: 1,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.74 : 2,622.75 = 1,238.35 : x
  2. Step 2: Convert to fraction form
    1,901.74/2,622.75 = 1,238.35/x
  3. Step 3: Cross multiply
    1,901.74x = 2,622.75 × 1,238.35
  4. Step 4: Simplify right side
    1,901.74x = 3,247,882.46
  5. Step 5: Solve for x
    x = 3,247,882.46/1,901.74
  6. Step 6: Final answer
    x = 1,707.85

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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.