Home / 3,955.58-5,458.31-2,187.08

Finding the Fourth Proportional to 3,955.58, 5,458.31 and 2,187.08

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Solution

The fourth proportional to 3,955.58, 5,458.31 and 2,187.08 is: 3,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.58 : 5,458.31 = 2,187.08 : x
  2. Step 2: Convert to fraction form
    3,955.58/5,458.31 = 2,187.08/x
  3. Step 3: Cross multiply
    3,955.58x = 5,458.31 × 2,187.08
  4. Step 4: Simplify right side
    3,955.58x = 11,937,741.88
  5. Step 5: Solve for x
    x = 11,937,741.88/3,955.58
  6. Step 6: Final answer
    x = 3,017.95

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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.