Home / 2,187.41-3,018.26-1,302.89

Finding the Fourth Proportional to 2,187.41, 3,018.26 and 1,302.89

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Solution

The fourth proportional to 2,187.41, 3,018.26 and 1,302.89 is: 1,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.41 : 3,018.26 = 1,302.89 : x
  2. Step 2: Convert to fraction form
    2,187.41/3,018.26 = 1,302.89/x
  3. Step 3: Cross multiply
    2,187.41x = 3,018.26 × 1,302.89
  4. Step 4: Simplify right side
    2,187.41x = 3,932,448.94
  5. Step 5: Solve for x
    x = 3,932,448.94/2,187.41
  6. Step 6: Final answer
    x = 1,797.77

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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.