Home / 3,775.75-5,210.54-2,119.75

Finding the Fourth Proportional to 3,775.75, 5,210.54 and 2,119.75

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Solution

The fourth proportional to 3,775.75, 5,210.54 and 2,119.75 is: 2,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.75 : 5,210.54 = 2,119.75 : x
  2. Step 2: Convert to fraction form
    3,775.75/5,210.54 = 2,119.75/x
  3. Step 3: Cross multiply
    3,775.75x = 5,210.54 × 2,119.75
  4. Step 4: Simplify right side
    3,775.75x = 11,045,042.17
  5. Step 5: Solve for x
    x = 11,045,042.17/3,775.75
  6. Step 6: Final answer
    x = 2,925.26

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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.