Home / 7,427.25-11,142.50-2,810.25

Finding the Fourth Proportional to 7,427.25, 11,142.50 and 2,810.25

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Solution

The fourth proportional to 7,427.25, 11,142.50 and 2,810.25 is: 4,215.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.25 : 11,142.50 = 2,810.25 : x
  2. Step 2: Convert to fraction form
    7,427.25/11,142.50 = 2,810.25/x
  3. Step 3: Cross multiply
    7,427.25x = 11,142.50 × 2,810.25
  4. Step 4: Simplify right side
    7,427.25x = 31,313,196.57
  5. Step 5: Solve for x
    x = 31,313,196.57/7,427.25
  6. Step 6: Final answer
    x = 4,215.99

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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.