Home / 3,386.21-5,054.27-3,178.44

Finding the Fourth Proportional to 3,386.21, 5,054.27 and 3,178.44

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Solution

The fourth proportional to 3,386.21, 5,054.27 and 3,178.44 is: 4,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.21 : 5,054.27 = 3,178.44 : x
  2. Step 2: Convert to fraction form
    3,386.21/5,054.27 = 3,178.44/x
  3. Step 3: Cross multiply
    3,386.21x = 5,054.27 × 3,178.44
  4. Step 4: Simplify right side
    3,386.21x = 16,064,678.05
  5. Step 5: Solve for x
    x = 16,064,678.05/3,386.21
  6. Step 6: Final answer
    x = 4,744.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.