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Finding the Fourth Proportional to 1,705.84, 2,555 and 884.92

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Solution

The fourth proportional to 1,705.84, 2,555 and 884.92 is: 1,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.84 : 2,555 = 884.92 : x
  2. Step 2: Convert to fraction form
    1,705.84/2,555 = 884.92/x
  3. Step 3: Cross multiply
    1,705.84x = 2,555 × 884.92
  4. Step 4: Simplify right side
    1,705.84x = 2,260,970.60
  5. Step 5: Solve for x
    x = 2,260,970.60/1,705.84
  6. Step 6: Final answer
    x = 1,325.43

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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.