Home / 1,855.04-2,785.80-1,445.18

Finding the Fourth Proportional to 1,855.04, 2,785.80 and 1,445.18

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Solution

The fourth proportional to 1,855.04, 2,785.80 and 1,445.18 is: 2,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.04 : 2,785.80 = 1,445.18 : x
  2. Step 2: Convert to fraction form
    1,855.04/2,785.80 = 1,445.18/x
  3. Step 3: Cross multiply
    1,855.04x = 2,785.80 × 1,445.18
  4. Step 4: Simplify right side
    1,855.04x = 4,025,982.44
  5. Step 5: Solve for x
    x = 4,025,982.44/1,855.04
  6. Step 6: Final answer
    x = 2,170.29

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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.