Home / 2,273.80-3,136.60-1,555.35

Finding the Fourth Proportional to 2,273.80, 3,136.60 and 1,555.35

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Solution

The fourth proportional to 2,273.80, 3,136.60 and 1,555.35 is: 2,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.80 : 3,136.60 = 1,555.35 : x
  2. Step 2: Convert to fraction form
    2,273.80/3,136.60 = 1,555.35/x
  3. Step 3: Cross multiply
    2,273.80x = 3,136.60 × 1,555.35
  4. Step 4: Simplify right side
    2,273.80x = 4,878,514.26
  5. Step 5: Solve for x
    x = 4,878,514.26/2,273.80
  6. Step 6: Final answer
    x = 2,145.54

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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.