Home / 2,785.23-3,843.60-1,543.23

Finding the Fourth Proportional to 2,785.23, 3,843.60 and 1,543.23

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Solution

The fourth proportional to 2,785.23, 3,843.60 and 1,543.23 is: 2,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.23 : 3,843.60 = 1,543.23 : x
  2. Step 2: Convert to fraction form
    2,785.23/3,843.60 = 1,543.23/x
  3. Step 3: Cross multiply
    2,785.23x = 3,843.60 × 1,543.23
  4. Step 4: Simplify right side
    2,785.23x = 5,931,558.83
  5. Step 5: Solve for x
    x = 5,931,558.83/2,785.23
  6. Step 6: Final answer
    x = 2,129.65

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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.