Home / 2,981.04-4,111.32-2,236.74

Finding the Fourth Proportional to 2,981.04, 4,111.32 and 2,236.74

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Solution

The fourth proportional to 2,981.04, 4,111.32 and 2,236.74 is: 3,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.04 : 4,111.32 = 2,236.74 : x
  2. Step 2: Convert to fraction form
    2,981.04/4,111.32 = 2,236.74/x
  3. Step 3: Cross multiply
    2,981.04x = 4,111.32 × 2,236.74
  4. Step 4: Simplify right side
    2,981.04x = 9,195,953.90
  5. Step 5: Solve for x
    x = 9,195,953.90/2,981.04
  6. Step 6: Final answer
    x = 3,084.81

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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.