Home / 1,806.21-2,492.34-1,020.09

Finding the Fourth Proportional to 1,806.21, 2,492.34 and 1,020.09

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Solution

The fourth proportional to 1,806.21, 2,492.34 and 1,020.09 is: 1,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.21 : 2,492.34 = 1,020.09 : x
  2. Step 2: Convert to fraction form
    1,806.21/2,492.34 = 1,020.09/x
  3. Step 3: Cross multiply
    1,806.21x = 2,492.34 × 1,020.09
  4. Step 4: Simplify right side
    1,806.21x = 2,542,411.11
  5. Step 5: Solve for x
    x = 2,542,411.11/1,806.21
  6. Step 6: Final answer
    x = 1,407.59

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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.