Home / 9,180.42-13,772.88-2,940.45

Finding the Fourth Proportional to 9,180.42, 13,772.88 and 2,940.45

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Solution

The fourth proportional to 9,180.42, 13,772.88 and 2,940.45 is: 4,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.42 : 13,772.88 = 2,940.45 : x
  2. Step 2: Convert to fraction form
    9,180.42/13,772.88 = 2,940.45/x
  3. Step 3: Cross multiply
    9,180.42x = 13,772.88 × 2,940.45
  4. Step 4: Simplify right side
    9,180.42x = 40,498,465.00
  5. Step 5: Solve for x
    x = 40,498,465.00/9,180.42
  6. Step 6: Final answer
    x = 4,411.40

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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.