Home / 1,890.68-2,821.72-1,733.80

Finding the Fourth Proportional to 1,890.68, 2,821.72 and 1,733.80

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Solution

The fourth proportional to 1,890.68, 2,821.72 and 1,733.80 is: 2,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.68 : 2,821.72 = 1,733.80 : x
  2. Step 2: Convert to fraction form
    1,890.68/2,821.72 = 1,733.80/x
  3. Step 3: Cross multiply
    1,890.68x = 2,821.72 × 1,733.80
  4. Step 4: Simplify right side
    1,890.68x = 4,892,298.14
  5. Step 5: Solve for x
    x = 4,892,298.14/1,890.68
  6. Step 6: Final answer
    x = 2,587.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.