Home / 4,280.12-5,904.78-2,880.44

Finding the Fourth Proportional to 4,280.12, 5,904.78 and 2,880.44

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Solution

The fourth proportional to 4,280.12, 5,904.78 and 2,880.44 is: 3,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.12 : 5,904.78 = 2,880.44 : x
  2. Step 2: Convert to fraction form
    4,280.12/5,904.78 = 2,880.44/x
  3. Step 3: Cross multiply
    4,280.12x = 5,904.78 × 2,880.44
  4. Step 4: Simplify right side
    4,280.12x = 17,008,364.50
  5. Step 5: Solve for x
    x = 17,008,364.50/4,280.12
  6. Step 6: Final answer
    x = 3,973.81

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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.