Home / 3,786.25-5,225.04-2,130.25

Finding the Fourth Proportional to 3,786.25, 5,225.04 and 2,130.25

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Solution

The fourth proportional to 3,786.25, 5,225.04 and 2,130.25 is: 2,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.25 : 5,225.04 = 2,130.25 : x
  2. Step 2: Convert to fraction form
    3,786.25/5,225.04 = 2,130.25/x
  3. Step 3: Cross multiply
    3,786.25x = 5,225.04 × 2,130.25
  4. Step 4: Simplify right side
    3,786.25x = 11,130,641.46
  5. Step 5: Solve for x
    x = 11,130,641.46/3,786.25
  6. Step 6: Final answer
    x = 2,939.75

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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.