Home / 2,072.61-2,860.02-1,188.36

Finding the Fourth Proportional to 2,072.61, 2,860.02 and 1,188.36

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Solution

The fourth proportional to 2,072.61, 2,860.02 and 1,188.36 is: 1,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.61 : 2,860.02 = 1,188.36 : x
  2. Step 2: Convert to fraction form
    2,072.61/2,860.02 = 1,188.36/x
  3. Step 3: Cross multiply
    2,072.61x = 2,860.02 × 1,188.36
  4. Step 4: Simplify right side
    2,072.61x = 3,398,733.37
  5. Step 5: Solve for x
    x = 3,398,733.37/2,072.61
  6. Step 6: Final answer
    x = 1,639.83

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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.