Home / 3,728.80-5,145.48-2,050.18

Finding the Fourth Proportional to 3,728.80, 5,145.48 and 2,050.18

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Solution

The fourth proportional to 3,728.80, 5,145.48 and 2,050.18 is: 2,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.80 : 5,145.48 = 2,050.18 : x
  2. Step 2: Convert to fraction form
    3,728.80/5,145.48 = 2,050.18/x
  3. Step 3: Cross multiply
    3,728.80x = 5,145.48 × 2,050.18
  4. Step 4: Simplify right side
    3,728.80x = 10,549,160.19
  5. Step 5: Solve for x
    x = 10,549,160.19/3,728.80
  6. Step 6: Final answer
    x = 2,829.10

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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.