Home / 2,830.60-4,245.90-2,571.40

Finding the Fourth Proportional to 2,830.60, 4,245.90 and 2,571.40

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Solution

The fourth proportional to 2,830.60, 4,245.90 and 2,571.40 is: 3,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.60 : 4,245.90 = 2,571.40 : x
  2. Step 2: Convert to fraction form
    2,830.60/4,245.90 = 2,571.40/x
  3. Step 3: Cross multiply
    2,830.60x = 4,245.90 × 2,571.40
  4. Step 4: Simplify right side
    2,830.60x = 10,917,907.26
  5. Step 5: Solve for x
    x = 10,917,907.26/2,830.60
  6. Step 6: Final answer
    x = 3,857.10

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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.