Home / 3,404.40-4,698.36-1,912.56

Finding the Fourth Proportional to 3,404.40, 4,698.36 and 1,912.56

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Solution

The fourth proportional to 3,404.40, 4,698.36 and 1,912.56 is: 2,639.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.40 : 4,698.36 = 1,912.56 : x
  2. Step 2: Convert to fraction form
    3,404.40/4,698.36 = 1,912.56/x
  3. Step 3: Cross multiply
    3,404.40x = 4,698.36 × 1,912.56
  4. Step 4: Simplify right side
    3,404.40x = 8,985,895.40
  5. Step 5: Solve for x
    x = 8,985,895.40/3,404.40
  6. Step 6: Final answer
    x = 2,639.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.