Home / 1,721.99-2,377.53-1,611.83

Finding the Fourth Proportional to 1,721.99, 2,377.53 and 1,611.83

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Solution

The fourth proportional to 1,721.99, 2,377.53 and 1,611.83 is: 2,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.99 : 2,377.53 = 1,611.83 : x
  2. Step 2: Convert to fraction form
    1,721.99/2,377.53 = 1,611.83/x
  3. Step 3: Cross multiply
    1,721.99x = 2,377.53 × 1,611.83
  4. Step 4: Simplify right side
    1,721.99x = 3,832,162.29
  5. Step 5: Solve for x
    x = 3,832,162.29/1,721.99
  6. Step 6: Final answer
    x = 2,225.43

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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.