Home / 1,981.87-2,733.55-1,450.91

Finding the Fourth Proportional to 1,981.87, 2,733.55 and 1,450.91

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Solution

The fourth proportional to 1,981.87, 2,733.55 and 1,450.91 is: 2,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.87 : 2,733.55 = 1,450.91 : x
  2. Step 2: Convert to fraction form
    1,981.87/2,733.55 = 1,450.91/x
  3. Step 3: Cross multiply
    1,981.87x = 2,733.55 × 1,450.91
  4. Step 4: Simplify right side
    1,981.87x = 3,966,138.24
  5. Step 5: Solve for x
    x = 3,966,138.24/1,981.87
  6. Step 6: Final answer
    x = 2,001.21

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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.