Home / 4,145.50-6,218.25-1,409.50

Finding the Fourth Proportional to 4,145.50, 6,218.25 and 1,409.50

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Solution

The fourth proportional to 4,145.50, 6,218.25 and 1,409.50 is: 2,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.50 : 6,218.25 = 1,409.50 : x
  2. Step 2: Convert to fraction form
    4,145.50/6,218.25 = 1,409.50/x
  3. Step 3: Cross multiply
    4,145.50x = 6,218.25 × 1,409.50
  4. Step 4: Simplify right side
    4,145.50x = 8,764,623.38
  5. Step 5: Solve for x
    x = 8,764,623.38/4,145.50
  6. Step 6: Final answer
    x = 2,114.25

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Double scale
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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.