Home / 4,763.19-7,146.81-1,990.41

Finding the Fourth Proportional to 4,763.19, 7,146.81 and 1,990.41

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Solution

The fourth proportional to 4,763.19, 7,146.81 and 1,990.41 is: 2,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.19 : 7,146.81 = 1,990.41 : x
  2. Step 2: Convert to fraction form
    4,763.19/7,146.81 = 1,990.41/x
  3. Step 3: Cross multiply
    4,763.19x = 7,146.81 × 1,990.41
  4. Step 4: Simplify right side
    4,763.19x = 14,225,082.09
  5. Step 5: Solve for x
    x = 14,225,082.09/4,763.19
  6. Step 6: Final answer
    x = 2,986.46

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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.