Home / 1,805.16-2,704.91-1,395.30

Finding the Fourth Proportional to 1,805.16, 2,704.91 and 1,395.30

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Solution

The fourth proportional to 1,805.16, 2,704.91 and 1,395.30 is: 2,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.16 : 2,704.91 = 1,395.30 : x
  2. Step 2: Convert to fraction form
    1,805.16/2,704.91 = 1,395.30/x
  3. Step 3: Cross multiply
    1,805.16x = 2,704.91 × 1,395.30
  4. Step 4: Simplify right side
    1,805.16x = 3,774,153.95
  5. Step 5: Solve for x
    x = 3,774,153.95/1,805.16
  6. Step 6: Final answer
    x = 2,090.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.