Home / 3,887.61-5,364.55-2,186.01

Finding the Fourth Proportional to 3,887.61, 5,364.55 and 2,186.01

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Solution

The fourth proportional to 3,887.61, 5,364.55 and 2,186.01 is: 3,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.61 : 5,364.55 = 2,186.01 : x
  2. Step 2: Convert to fraction form
    3,887.61/5,364.55 = 2,186.01/x
  3. Step 3: Cross multiply
    3,887.61x = 5,364.55 × 2,186.01
  4. Step 4: Simplify right side
    3,887.61x = 11,726,959.95
  5. Step 5: Solve for x
    x = 11,726,959.95/3,887.61
  6. Step 6: Final answer
    x = 3,016.50

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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.