Home / 4,918.34-7,378.83-2,145.24

Finding the Fourth Proportional to 4,918.34, 7,378.83 and 2,145.24

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Solution

The fourth proportional to 4,918.34, 7,378.83 and 2,145.24 is: 3,218.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.34 : 7,378.83 = 2,145.24 : x
  2. Step 2: Convert to fraction form
    4,918.34/7,378.83 = 2,145.24/x
  3. Step 3: Cross multiply
    4,918.34x = 7,378.83 × 2,145.24
  4. Step 4: Simplify right side
    4,918.34x = 15,829,361.27
  5. Step 5: Solve for x
    x = 15,829,361.27/4,918.34
  6. Step 6: Final answer
    x = 3,218.43

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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.