Home / 2,972.77-4,102.66-1,646.60

Finding the Fourth Proportional to 2,972.77, 4,102.66 and 1,646.60

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Solution

The fourth proportional to 2,972.77, 4,102.66 and 1,646.60 is: 2,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.77 : 4,102.66 = 1,646.60 : x
  2. Step 2: Convert to fraction form
    2,972.77/4,102.66 = 1,646.60/x
  3. Step 3: Cross multiply
    2,972.77x = 4,102.66 × 1,646.60
  4. Step 4: Simplify right side
    2,972.77x = 6,755,415.33
  5. Step 5: Solve for x
    x = 6,755,415.33/2,972.77
  6. Step 6: Final answer
    x = 2,272.43

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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.