Home / 2,438.10-3,661.40-2,161.08

Finding the Fourth Proportional to 2,438.10, 3,661.40 and 2,161.08

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Solution

The fourth proportional to 2,438.10, 3,661.40 and 2,161.08 is: 3,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.10 : 3,661.40 = 2,161.08 : x
  2. Step 2: Convert to fraction form
    2,438.10/3,661.40 = 2,161.08/x
  3. Step 3: Cross multiply
    2,438.10x = 3,661.40 × 2,161.08
  4. Step 4: Simplify right side
    2,438.10x = 7,912,583.71
  5. Step 5: Solve for x
    x = 7,912,583.71/2,438.10
  6. Step 6: Final answer
    x = 3,245.39

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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.