Home / 3,431.93-5,140.71-2,845.53

Finding the Fourth Proportional to 3,431.93, 5,140.71 and 2,845.53

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Solution

The fourth proportional to 3,431.93, 5,140.71 and 2,845.53 is: 4,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.93 : 5,140.71 = 2,845.53 : x
  2. Step 2: Convert to fraction form
    3,431.93/5,140.71 = 2,845.53/x
  3. Step 3: Cross multiply
    3,431.93x = 5,140.71 × 2,845.53
  4. Step 4: Simplify right side
    3,431.93x = 14,628,044.53
  5. Step 5: Solve for x
    x = 14,628,044.53/3,431.93
  6. Step 6: Final answer
    x = 4,262.34

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1.5x scale

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.