Home / 2,181.85-3,010.60-1,436.11

Finding the Fourth Proportional to 2,181.85, 3,010.60 and 1,436.11

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Solution

The fourth proportional to 2,181.85, 3,010.60 and 1,436.11 is: 1,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.85 : 3,010.60 = 1,436.11 : x
  2. Step 2: Convert to fraction form
    2,181.85/3,010.60 = 1,436.11/x
  3. Step 3: Cross multiply
    2,181.85x = 3,010.60 × 1,436.11
  4. Step 4: Simplify right side
    2,181.85x = 4,323,552.77
  5. Step 5: Solve for x
    x = 4,323,552.77/2,181.85
  6. Step 6: Final answer
    x = 1,981.60

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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.