Home / 4,148.16-6,221.92-1,228.36

Finding the Fourth Proportional to 4,148.16, 6,221.92 and 1,228.36

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Solution

The fourth proportional to 4,148.16, 6,221.92 and 1,228.36 is: 1,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.16 : 6,221.92 = 1,228.36 : x
  2. Step 2: Convert to fraction form
    4,148.16/6,221.92 = 1,228.36/x
  3. Step 3: Cross multiply
    4,148.16x = 6,221.92 × 1,228.36
  4. Step 4: Simplify right side
    4,148.16x = 7,642,757.65
  5. Step 5: Solve for x
    x = 7,642,757.65/4,148.16
  6. Step 6: Final answer
    x = 1,842.45

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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.