Home / 2,972.16-4,101.67-1,645.99

Finding the Fourth Proportional to 2,972.16, 4,101.67 and 1,645.99

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Solution

The fourth proportional to 2,972.16, 4,101.67 and 1,645.99 is: 2,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.16 : 4,101.67 = 1,645.99 : x
  2. Step 2: Convert to fraction form
    2,972.16/4,101.67 = 1,645.99/x
  3. Step 3: Cross multiply
    2,972.16x = 4,101.67 × 1,645.99
  4. Step 4: Simplify right side
    2,972.16x = 6,751,299.61
  5. Step 5: Solve for x
    x = 6,751,299.61/2,972.16
  6. Step 6: Final answer
    x = 2,271.51

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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.