Home / 3,145.73-4,341.34-1,886.83

Finding the Fourth Proportional to 3,145.73, 4,341.34 and 1,886.83

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Solution

The fourth proportional to 3,145.73, 4,341.34 and 1,886.83 is: 2,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.73 : 4,341.34 = 1,886.83 : x
  2. Step 2: Convert to fraction form
    3,145.73/4,341.34 = 1,886.83/x
  3. Step 3: Cross multiply
    3,145.73x = 4,341.34 × 1,886.83
  4. Step 4: Simplify right side
    3,145.73x = 8,191,362.06
  5. Step 5: Solve for x
    x = 8,191,362.06/3,145.73
  6. Step 6: Final answer
    x = 2,603.97

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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.