Home / 7,218.90-10,828.08-3,055.50

Finding the Fourth Proportional to 7,218.90, 10,828.08 and 3,055.50

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Solution

The fourth proportional to 7,218.90, 10,828.08 and 3,055.50 is: 4,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.90 : 10,828.08 = 3,055.50 : x
  2. Step 2: Convert to fraction form
    7,218.90/10,828.08 = 3,055.50/x
  3. Step 3: Cross multiply
    7,218.90x = 10,828.08 × 3,055.50
  4. Step 4: Simplify right side
    7,218.90x = 33,085,198.44
  5. Step 5: Solve for x
    x = 33,085,198.44/7,218.90
  6. Step 6: Final answer
    x = 4,583.14

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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.