Home / 7,150.90-10,725.04-2,989.80

Finding the Fourth Proportional to 7,150.90, 10,725.04 and 2,989.80

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Solution

The fourth proportional to 7,150.90, 10,725.04 and 2,989.80 is: 4,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.90 : 10,725.04 = 2,989.80 : x
  2. Step 2: Convert to fraction form
    7,150.90/10,725.04 = 2,989.80/x
  3. Step 3: Cross multiply
    7,150.90x = 10,725.04 × 2,989.80
  4. Step 4: Simplify right side
    7,150.90x = 32,065,724.59
  5. Step 5: Solve for x
    x = 32,065,724.59/7,150.90
  6. Step 6: Final answer
    x = 4,484.15

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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.