Home / 4,142.36-6,215.56-1,678.94

Finding the Fourth Proportional to 4,142.36, 6,215.56 and 1,678.94

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Solution

The fourth proportional to 4,142.36, 6,215.56 and 1,678.94 is: 2,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.36 : 6,215.56 = 1,678.94 : x
  2. Step 2: Convert to fraction form
    4,142.36/6,215.56 = 1,678.94/x
  3. Step 3: Cross multiply
    4,142.36x = 6,215.56 × 1,678.94
  4. Step 4: Simplify right side
    4,142.36x = 10,435,552.31
  5. Step 5: Solve for x
    x = 10,435,552.31/4,142.36
  6. Step 6: Final answer
    x = 2,519.23

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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.