Home / 3,955.59-5,458.73-2,187.17

Finding the Fourth Proportional to 3,955.59, 5,458.73 and 2,187.17

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Solution

The fourth proportional to 3,955.59, 5,458.73 and 2,187.17 is: 3,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.59 : 5,458.73 = 2,187.17 : x
  2. Step 2: Convert to fraction form
    3,955.59/5,458.73 = 2,187.17/x
  3. Step 3: Cross multiply
    3,955.59x = 5,458.73 × 2,187.17
  4. Step 4: Simplify right side
    3,955.59x = 11,939,132.26
  5. Step 5: Solve for x
    x = 11,939,132.26/3,955.59
  6. Step 6: Final answer
    x = 3,018.29

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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.