Home / 2,972.32-4,101.66-1,645.92

Finding the Fourth Proportional to 2,972.32, 4,101.66 and 1,645.92

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Solution

The fourth proportional to 2,972.32, 4,101.66 and 1,645.92 is: 2,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.32 : 4,101.66 = 1,645.92 : x
  2. Step 2: Convert to fraction form
    2,972.32/4,101.66 = 1,645.92/x
  3. Step 3: Cross multiply
    2,972.32x = 4,101.66 × 1,645.92
  4. Step 4: Simplify right side
    2,972.32x = 6,751,004.23
  5. Step 5: Solve for x
    x = 6,751,004.23/2,972.32
  6. Step 6: Final answer
    x = 2,271.29

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1.5x scale

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.