Home / 2,187.23-3,018.40-1,192.52

Finding the Fourth Proportional to 2,187.23, 3,018.40 and 1,192.52

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Solution

The fourth proportional to 2,187.23, 3,018.40 and 1,192.52 is: 1,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.23 : 3,018.40 = 1,192.52 : x
  2. Step 2: Convert to fraction form
    2,187.23/3,018.40 = 1,192.52/x
  3. Step 3: Cross multiply
    2,187.23x = 3,018.40 × 1,192.52
  4. Step 4: Simplify right side
    2,187.23x = 3,599,511.96
  5. Step 5: Solve for x
    x = 3,599,511.96/2,187.23
  6. Step 6: Final answer
    x = 1,645.70

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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.