Home / 2,453.14-3,660.49-2,157.90

Finding the Fourth Proportional to 2,453.14, 3,660.49 and 2,157.90

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Solution

The fourth proportional to 2,453.14, 3,660.49 and 2,157.90 is: 3,219.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.14 : 3,660.49 = 2,157.90 : x
  2. Step 2: Convert to fraction form
    2,453.14/3,660.49 = 2,157.90/x
  3. Step 3: Cross multiply
    2,453.14x = 3,660.49 × 2,157.90
  4. Step 4: Simplify right side
    2,453.14x = 7,898,971.37
  5. Step 5: Solve for x
    x = 7,898,971.37/2,453.14
  6. Step 6: Final answer
    x = 3,219.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.