Home / 3,627.40-5,005.80-2,055.80

Finding the Fourth Proportional to 3,627.40, 5,005.80 and 2,055.80

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Solution

The fourth proportional to 3,627.40, 5,005.80 and 2,055.80 is: 2,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.40 : 5,005.80 = 2,055.80 : x
  2. Step 2: Convert to fraction form
    3,627.40/5,005.80 = 2,055.80/x
  3. Step 3: Cross multiply
    3,627.40x = 5,005.80 × 2,055.80
  4. Step 4: Simplify right side
    3,627.40x = 10,290,923.64
  5. Step 5: Solve for x
    x = 10,290,923.64/3,627.40
  6. Step 6: Final answer
    x = 2,837.00

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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.