Home / 3,120.81-4,683.08-1,246.37

Finding the Fourth Proportional to 3,120.81, 4,683.08 and 1,246.37

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Solution

The fourth proportional to 3,120.81, 4,683.08 and 1,246.37 is: 1,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.81 : 4,683.08 = 1,246.37 : x
  2. Step 2: Convert to fraction form
    3,120.81/4,683.08 = 1,246.37/x
  3. Step 3: Cross multiply
    3,120.81x = 4,683.08 × 1,246.37
  4. Step 4: Simplify right side
    3,120.81x = 5,836,830.12
  5. Step 5: Solve for x
    x = 5,836,830.12/3,120.81
  6. Step 6: Final answer
    x = 1,870.29

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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.