Home / 3,431.54-5,148.08-1,240.26

Finding the Fourth Proportional to 3,431.54, 5,148.08 and 1,240.26

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Solution

The fourth proportional to 3,431.54, 5,148.08 and 1,240.26 is: 1,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.54 : 5,148.08 = 1,240.26 : x
  2. Step 2: Convert to fraction form
    3,431.54/5,148.08 = 1,240.26/x
  3. Step 3: Cross multiply
    3,431.54x = 5,148.08 × 1,240.26
  4. Step 4: Simplify right side
    3,431.54x = 6,384,957.70
  5. Step 5: Solve for x
    x = 6,384,957.70/3,431.54
  6. Step 6: Final answer
    x = 1,860.67

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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.