Home / 2,782.96-4,176.36-1,415.92

Finding the Fourth Proportional to 2,782.96, 4,176.36 and 1,415.92

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Solution

The fourth proportional to 2,782.96, 4,176.36 and 1,415.92 is: 2,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.96 : 4,176.36 = 1,415.92 : x
  2. Step 2: Convert to fraction form
    2,782.96/4,176.36 = 1,415.92/x
  3. Step 3: Cross multiply
    2,782.96x = 4,176.36 × 1,415.92
  4. Step 4: Simplify right side
    2,782.96x = 5,913,391.65
  5. Step 5: Solve for x
    x = 5,913,391.65/2,782.96
  6. Step 6: Final answer
    x = 2,124.86

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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.