Home / 5,418.39-8,127.58-1,955.64

Finding the Fourth Proportional to 5,418.39, 8,127.58 and 1,955.64

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Solution

The fourth proportional to 5,418.39, 8,127.58 and 1,955.64 is: 2,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.39 : 8,127.58 = 1,955.64 : x
  2. Step 2: Convert to fraction form
    5,418.39/8,127.58 = 1,955.64/x
  3. Step 3: Cross multiply
    5,418.39x = 8,127.58 × 1,955.64
  4. Step 4: Simplify right side
    5,418.39x = 15,894,620.55
  5. Step 5: Solve for x
    x = 15,894,620.55/5,418.39
  6. Step 6: Final answer
    x = 2,933.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.