Home / 2,240.91-3,360.16-1,981.53

Finding the Fourth Proportional to 2,240.91, 3,360.16 and 1,981.53

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Solution

The fourth proportional to 2,240.91, 3,360.16 and 1,981.53 is: 2,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.91 : 3,360.16 = 1,981.53 : x
  2. Step 2: Convert to fraction form
    2,240.91/3,360.16 = 1,981.53/x
  3. Step 3: Cross multiply
    2,240.91x = 3,360.16 × 1,981.53
  4. Step 4: Simplify right side
    2,240.91x = 6,658,257.84
  5. Step 5: Solve for x
    x = 6,658,257.84/2,240.91
  6. Step 6: Final answer
    x = 2,971.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.