Home / 4,159.80-6,239.70-2,847.60

Finding the Fourth Proportional to 4,159.80, 6,239.70 and 2,847.60

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Solution

The fourth proportional to 4,159.80, 6,239.70 and 2,847.60 is: 4,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.80 : 6,239.70 = 2,847.60 : x
  2. Step 2: Convert to fraction form
    4,159.80/6,239.70 = 2,847.60/x
  3. Step 3: Cross multiply
    4,159.80x = 6,239.70 × 2,847.60
  4. Step 4: Simplify right side
    4,159.80x = 17,768,169.72
  5. Step 5: Solve for x
    x = 17,768,169.72/4,159.80
  6. Step 6: Final answer
    x = 4,271.40

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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.