Home / 3,728.80-5,145.74-2,050.23

Finding the Fourth Proportional to 3,728.80, 5,145.74 and 2,050.23

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Solution

The fourth proportional to 3,728.80, 5,145.74 and 2,050.23 is: 2,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.80 : 5,145.74 = 2,050.23 : x
  2. Step 2: Convert to fraction form
    3,728.80/5,145.74 = 2,050.23/x
  3. Step 3: Cross multiply
    3,728.80x = 5,145.74 × 2,050.23
  4. Step 4: Simplify right side
    3,728.80x = 10,549,953.08
  5. Step 5: Solve for x
    x = 10,549,953.08/3,728.80
  6. Step 6: Final answer
    x = 2,829.32

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Half scale
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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.