Home / 3,775.16-5,210.34-2,181.89

Finding the Fourth Proportional to 3,775.16, 5,210.34 and 2,181.89

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Solution

The fourth proportional to 3,775.16, 5,210.34 and 2,181.89 is: 3,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.16 : 5,210.34 = 2,181.89 : x
  2. Step 2: Convert to fraction form
    3,775.16/5,210.34 = 2,181.89/x
  3. Step 3: Cross multiply
    3,775.16x = 5,210.34 × 2,181.89
  4. Step 4: Simplify right side
    3,775.16x = 11,368,388.74
  5. Step 5: Solve for x
    x = 11,368,388.74/3,775.16
  6. Step 6: Final answer
    x = 3,011.37

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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.