Home / 3,426.36-5,141.36-1,478.40

Finding the Fourth Proportional to 3,426.36, 5,141.36 and 1,478.40

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Solution

The fourth proportional to 3,426.36, 5,141.36 and 1,478.40 is: 2,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.36 : 5,141.36 = 1,478.40 : x
  2. Step 2: Convert to fraction form
    3,426.36/5,141.36 = 1,478.40/x
  3. Step 3: Cross multiply
    3,426.36x = 5,141.36 × 1,478.40
  4. Step 4: Simplify right side
    3,426.36x = 7,600,986.62
  5. Step 5: Solve for x
    x = 7,600,986.62/3,426.36
  6. Step 6: Final answer
    x = 2,218.39

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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.