Home / 1,806.90-2,493.51-1,020.95

Finding the Fourth Proportional to 1,806.90, 2,493.51 and 1,020.95

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Solution

The fourth proportional to 1,806.90, 2,493.51 and 1,020.95 is: 1,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.90 : 2,493.51 = 1,020.95 : x
  2. Step 2: Convert to fraction form
    1,806.90/2,493.51 = 1,020.95/x
  3. Step 3: Cross multiply
    1,806.90x = 2,493.51 × 1,020.95
  4. Step 4: Simplify right side
    1,806.90x = 2,545,736.57
  5. Step 5: Solve for x
    x = 2,545,736.57/1,806.90
  6. Step 6: Final answer
    x = 1,408.90

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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.