Home / 4,405.84-6,078.38-2,812.55

Finding the Fourth Proportional to 4,405.84, 6,078.38 and 2,812.55

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Solution

The fourth proportional to 4,405.84, 6,078.38 and 2,812.55 is: 3,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.84 : 6,078.38 = 2,812.55 : x
  2. Step 2: Convert to fraction form
    4,405.84/6,078.38 = 2,812.55/x
  3. Step 3: Cross multiply
    4,405.84x = 6,078.38 × 2,812.55
  4. Step 4: Simplify right side
    4,405.84x = 17,095,724.31
  5. Step 5: Solve for x
    x = 17,095,724.31/4,405.84
  6. Step 6: Final answer
    x = 3,880.24

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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.