Home / 3,942.02-5,913.76-1,443.40

Finding the Fourth Proportional to 3,942.02, 5,913.76 and 1,443.40

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Solution

The fourth proportional to 3,942.02, 5,913.76 and 1,443.40 is: 2,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.02 : 5,913.76 = 1,443.40 : x
  2. Step 2: Convert to fraction form
    3,942.02/5,913.76 = 1,443.40/x
  3. Step 3: Cross multiply
    3,942.02x = 5,913.76 × 1,443.40
  4. Step 4: Simplify right side
    3,942.02x = 8,535,921.18
  5. Step 5: Solve for x
    x = 8,535,921.18/3,942.02
  6. Step 6: Final answer
    x = 2,165.37

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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.