Home / 2,865.02-4,297.56-1,942.40

Finding the Fourth Proportional to 2,865.02, 4,297.56 and 1,942.40

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Solution

The fourth proportional to 2,865.02, 4,297.56 and 1,942.40 is: 2,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.02 : 4,297.56 = 1,942.40 : x
  2. Step 2: Convert to fraction form
    2,865.02/4,297.56 = 1,942.40/x
  3. Step 3: Cross multiply
    2,865.02x = 4,297.56 × 1,942.40
  4. Step 4: Simplify right side
    2,865.02x = 8,347,580.54
  5. Step 5: Solve for x
    x = 8,347,580.54/2,865.02
  6. Step 6: Final answer
    x = 2,913.62

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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.