Home / 2,017.28-2,781.60-1,936.64

Finding the Fourth Proportional to 2,017.28, 2,781.60 and 1,936.64

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Solution

The fourth proportional to 2,017.28, 2,781.60 and 1,936.64 is: 2,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.28 : 2,781.60 = 1,936.64 : x
  2. Step 2: Convert to fraction form
    2,017.28/2,781.60 = 1,936.64/x
  3. Step 3: Cross multiply
    2,017.28x = 2,781.60 × 1,936.64
  4. Step 4: Simplify right side
    2,017.28x = 5,386,957.82
  5. Step 5: Solve for x
    x = 5,386,957.82/2,017.28
  6. Step 6: Final answer
    x = 2,670.41

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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.