Home / 3,028.19-4,178.90-1,683.81

Finding the Fourth Proportional to 3,028.19, 4,178.90 and 1,683.81

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Solution

The fourth proportional to 3,028.19, 4,178.90 and 1,683.81 is: 2,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.19 : 4,178.90 = 1,683.81 : x
  2. Step 2: Convert to fraction form
    3,028.19/4,178.90 = 1,683.81/x
  3. Step 3: Cross multiply
    3,028.19x = 4,178.90 × 1,683.81
  4. Step 4: Simplify right side
    3,028.19x = 7,036,477.82
  5. Step 5: Solve for x
    x = 7,036,477.82/3,028.19
  6. Step 6: Final answer
    x = 2,323.66

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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.