Home / 7,284.20-10,926.30-3,121.50

Finding the Fourth Proportional to 7,284.20, 10,926.30 and 3,121.50

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Solution

The fourth proportional to 7,284.20, 10,926.30 and 3,121.50 is: 4,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.20 : 10,926.30 = 3,121.50 : x
  2. Step 2: Convert to fraction form
    7,284.20/10,926.30 = 3,121.50/x
  3. Step 3: Cross multiply
    7,284.20x = 10,926.30 × 3,121.50
  4. Step 4: Simplify right side
    7,284.20x = 34,106,429.84
  5. Step 5: Solve for x
    x = 34,106,429.84/7,284.20
  6. Step 6: Final answer
    x = 4,682.25

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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.