Home / 3,407.20-4,702.08-2,080.60

Finding the Fourth Proportional to 3,407.20, 4,702.08 and 2,080.60

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Solution

The fourth proportional to 3,407.20, 4,702.08 and 2,080.60 is: 2,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.20 : 4,702.08 = 2,080.60 : x
  2. Step 2: Convert to fraction form
    3,407.20/4,702.08 = 2,080.60/x
  3. Step 3: Cross multiply
    3,407.20x = 4,702.08 × 2,080.60
  4. Step 4: Simplify right side
    3,407.20x = 9,783,147.65
  5. Step 5: Solve for x
    x = 9,783,147.65/3,407.20
  6. Step 6: Final answer
    x = 2,871.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.