Home / 2,930.38-4,395.47-1,369.81

Finding the Fourth Proportional to 2,930.38, 4,395.47 and 1,369.81

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Solution

The fourth proportional to 2,930.38, 4,395.47 and 1,369.81 is: 2,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.38 : 4,395.47 = 1,369.81 : x
  2. Step 2: Convert to fraction form
    2,930.38/4,395.47 = 1,369.81/x
  3. Step 3: Cross multiply
    2,930.38x = 4,395.47 × 1,369.81
  4. Step 4: Simplify right side
    2,930.38x = 6,020,957.41
  5. Step 5: Solve for x
    x = 6,020,957.41/2,930.38
  6. Step 6: Final answer
    x = 2,054.67

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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.