Home / 1,754.40-2,628.86-1,103.76

Finding the Fourth Proportional to 1,754.40, 2,628.86 and 1,103.76

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Solution

The fourth proportional to 1,754.40, 2,628.86 and 1,103.76 is: 1,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.40 : 2,628.86 = 1,103.76 : x
  2. Step 2: Convert to fraction form
    1,754.40/2,628.86 = 1,103.76/x
  3. Step 3: Cross multiply
    1,754.40x = 2,628.86 × 1,103.76
  4. Step 4: Simplify right side
    1,754.40x = 2,901,630.51
  5. Step 5: Solve for x
    x = 2,901,630.51/1,754.40
  6. Step 6: Final answer
    x = 1,653.92

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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.