Home / 6,880.78-10,318.55-2,929.55

Finding the Fourth Proportional to 6,880.78, 10,318.55 and 2,929.55

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Solution

The fourth proportional to 6,880.78, 10,318.55 and 2,929.55 is: 4,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.78 : 10,318.55 = 2,929.55 : x
  2. Step 2: Convert to fraction form
    6,880.78/10,318.55 = 2,929.55/x
  3. Step 3: Cross multiply
    6,880.78x = 10,318.55 × 2,929.55
  4. Step 4: Simplify right side
    6,880.78x = 30,228,708.15
  5. Step 5: Solve for x
    x = 30,228,708.15/6,880.78
  6. Step 6: Final answer
    x = 4,393.21

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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.