Home / 2,847.54-4,271.34-1,385.45

Finding the Fourth Proportional to 2,847.54, 4,271.34 and 1,385.45

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Solution

The fourth proportional to 2,847.54, 4,271.34 and 1,385.45 is: 2,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.54 : 4,271.34 = 1,385.45 : x
  2. Step 2: Convert to fraction form
    2,847.54/4,271.34 = 1,385.45/x
  3. Step 3: Cross multiply
    2,847.54x = 4,271.34 × 1,385.45
  4. Step 4: Simplify right side
    2,847.54x = 5,917,706.65
  5. Step 5: Solve for x
    x = 5,917,706.65/2,847.54
  6. Step 6: Final answer
    x = 2,078.18

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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.