Home / 3,859.16-5,325.61-2,180.59

Finding the Fourth Proportional to 3,859.16, 5,325.61 and 2,180.59

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Solution

The fourth proportional to 3,859.16, 5,325.61 and 2,180.59 is: 3,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.16 : 5,325.61 = 2,180.59 : x
  2. Step 2: Convert to fraction form
    3,859.16/5,325.61 = 2,180.59/x
  3. Step 3: Cross multiply
    3,859.16x = 5,325.61 × 2,180.59
  4. Step 4: Simplify right side
    3,859.16x = 11,612,971.91
  5. Step 5: Solve for x
    x = 11,612,971.91/3,859.16
  6. Step 6: Final answer
    x = 3,009.20

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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.