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Finding the Fourth Proportional to 3,313.75, 4,573.10 and 1,897.69

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Solution

The fourth proportional to 3,313.75, 4,573.10 and 1,897.69 is: 2,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.75 : 4,573.10 = 1,897.69 : x
  2. Step 2: Convert to fraction form
    3,313.75/4,573.10 = 1,897.69/x
  3. Step 3: Cross multiply
    3,313.75x = 4,573.10 × 1,897.69
  4. Step 4: Simplify right side
    3,313.75x = 8,678,316.65
  5. Step 5: Solve for x
    x = 8,678,316.65/3,313.75
  6. Step 6: Final answer
    x = 2,618.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.