Home / 3,438.26-5,157.38-1,246.98

Finding the Fourth Proportional to 3,438.26, 5,157.38 and 1,246.98

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Solution

The fourth proportional to 3,438.26, 5,157.38 and 1,246.98 is: 1,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.26 : 5,157.38 = 1,246.98 : x
  2. Step 2: Convert to fraction form
    3,438.26/5,157.38 = 1,246.98/x
  3. Step 3: Cross multiply
    3,438.26x = 5,157.38 × 1,246.98
  4. Step 4: Simplify right side
    3,438.26x = 6,431,149.71
  5. Step 5: Solve for x
    x = 6,431,149.71/3,438.26
  6. Step 6: Final answer
    x = 1,870.47

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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.