Home / 2,981.09-4,114.44-1,802.13

Finding the Fourth Proportional to 2,981.09, 4,114.44 and 1,802.13

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Solution

The fourth proportional to 2,981.09, 4,114.44 and 1,802.13 is: 2,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.09 : 4,114.44 = 1,802.13 : x
  2. Step 2: Convert to fraction form
    2,981.09/4,114.44 = 1,802.13/x
  3. Step 3: Cross multiply
    2,981.09x = 4,114.44 × 1,802.13
  4. Step 4: Simplify right side
    2,981.09x = 7,414,755.76
  5. Step 5: Solve for x
    x = 7,414,755.76/2,981.09
  6. Step 6: Final answer
    x = 2,487.27

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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.