Home / 2,806.90-3,873.49-1,548.07

Finding the Fourth Proportional to 2,806.90, 3,873.49 and 1,548.07

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Solution

The fourth proportional to 2,806.90, 3,873.49 and 1,548.07 is: 2,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.90 : 3,873.49 = 1,548.07 : x
  2. Step 2: Convert to fraction form
    2,806.90/3,873.49 = 1,548.07/x
  3. Step 3: Cross multiply
    2,806.90x = 3,873.49 × 1,548.07
  4. Step 4: Simplify right side
    2,806.90x = 5,996,433.66
  5. Step 5: Solve for x
    x = 5,996,433.66/2,806.90
  6. Step 6: Final answer
    x = 2,136.32

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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.