Home / 2,072.44-2,860.14-1,188.28

Finding the Fourth Proportional to 2,072.44, 2,860.14 and 1,188.28

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Solution

The fourth proportional to 2,072.44, 2,860.14 and 1,188.28 is: 1,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.44 : 2,860.14 = 1,188.28 : x
  2. Step 2: Convert to fraction form
    2,072.44/2,860.14 = 1,188.28/x
  3. Step 3: Cross multiply
    2,072.44x = 2,860.14 × 1,188.28
  4. Step 4: Simplify right side
    2,072.44x = 3,398,647.16
  5. Step 5: Solve for x
    x = 3,398,647.16/2,072.44
  6. Step 6: Final answer
    x = 1,639.93

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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.