Home / 4,280.40-5,907.60-2,512.80

Finding the Fourth Proportional to 4,280.40, 5,907.60 and 2,512.80

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Solution

The fourth proportional to 4,280.40, 5,907.60 and 2,512.80 is: 3,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.40 : 5,907.60 = 2,512.80 : x
  2. Step 2: Convert to fraction form
    4,280.40/5,907.60 = 2,512.80/x
  3. Step 3: Cross multiply
    4,280.40x = 5,907.60 × 2,512.80
  4. Step 4: Simplify right side
    4,280.40x = 14,844,617.28
  5. Step 5: Solve for x
    x = 14,844,617.28/4,280.40
  6. Step 6: Final answer
    x = 3,468.04

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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.