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Finding the Fourth Proportional to 1,705.46, 2,555.42 and 882.56

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Solution

The fourth proportional to 1,705.46, 2,555.42 and 882.56 is: 1,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.46 : 2,555.42 = 882.56 : x
  2. Step 2: Convert to fraction form
    1,705.46/2,555.42 = 882.56/x
  3. Step 3: Cross multiply
    1,705.46x = 2,555.42 × 882.56
  4. Step 4: Simplify right side
    1,705.46x = 2,255,313.45
  5. Step 5: Solve for x
    x = 2,255,313.45/1,705.46
  6. Step 6: Final answer
    x = 1,322.41

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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.