Home / 1,806.21-2,487.02-1,540.06

Finding the Fourth Proportional to 1,806.21, 2,487.02 and 1,540.06

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Solution

The fourth proportional to 1,806.21, 2,487.02 and 1,540.06 is: 2,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.21 : 2,487.02 = 1,540.06 : x
  2. Step 2: Convert to fraction form
    1,806.21/2,487.02 = 1,540.06/x
  3. Step 3: Cross multiply
    1,806.21x = 2,487.02 × 1,540.06
  4. Step 4: Simplify right side
    1,806.21x = 3,830,160.02
  5. Step 5: Solve for x
    x = 3,830,160.02/1,806.21
  6. Step 6: Final answer
    x = 2,120.55

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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.