Home / 2,861.10-4,291.56-1,699.07

Finding the Fourth Proportional to 2,861.10, 4,291.56 and 1,699.07

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Solution

The fourth proportional to 2,861.10, 4,291.56 and 1,699.07 is: 2,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.10 : 4,291.56 = 1,699.07 : x
  2. Step 2: Convert to fraction form
    2,861.10/4,291.56 = 1,699.07/x
  3. Step 3: Cross multiply
    2,861.10x = 4,291.56 × 1,699.07
  4. Step 4: Simplify right side
    2,861.10x = 7,291,639.39
  5. Step 5: Solve for x
    x = 7,291,639.39/2,861.10
  6. Step 6: Final answer
    x = 2,548.54

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Half 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.