Home / 2,972.03-4,101.48-1,645.85

Finding the Fourth Proportional to 2,972.03, 4,101.48 and 1,645.85

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Solution

The fourth proportional to 2,972.03, 4,101.48 and 1,645.85 is: 2,271.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.03 : 4,101.48 = 1,645.85 : x
  2. Step 2: Convert to fraction form
    2,972.03/4,101.48 = 1,645.85/x
  3. Step 3: Cross multiply
    2,972.03x = 4,101.48 × 1,645.85
  4. Step 4: Simplify right side
    2,972.03x = 6,750,400.35
  5. Step 5: Solve for x
    x = 6,750,400.35/2,972.03
  6. Step 6: Final answer
    x = 2,271.31

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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.