Home / 5,390.37-7,439.94-3,153.27

Finding the Fourth Proportional to 5,390.37, 7,439.94 and 3,153.27

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Solution

The fourth proportional to 5,390.37, 7,439.94 and 3,153.27 is: 4,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.37 : 7,439.94 = 3,153.27 : x
  2. Step 2: Convert to fraction form
    5,390.37/7,439.94 = 3,153.27/x
  3. Step 3: Cross multiply
    5,390.37x = 7,439.94 × 3,153.27
  4. Step 4: Simplify right side
    5,390.37x = 23,460,139.60
  5. Step 5: Solve for x
    x = 23,460,139.60/5,390.37
  6. Step 6: Final answer
    x = 4,352.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.