Home / 1,742.94-2,603.88-1,121.58

Finding the Fourth Proportional to 1,742.94, 2,603.88 and 1,121.58

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Solution

The fourth proportional to 1,742.94, 2,603.88 and 1,121.58 is: 1,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.94 : 2,603.88 = 1,121.58 : x
  2. Step 2: Convert to fraction form
    1,742.94/2,603.88 = 1,121.58/x
  3. Step 3: Cross multiply
    1,742.94x = 2,603.88 × 1,121.58
  4. Step 4: Simplify right side
    1,742.94x = 2,920,459.73
  5. Step 5: Solve for x
    x = 2,920,459.73/1,742.94
  6. Step 6: Final answer
    x = 1,675.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.