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Finding the Fourth Proportional to 1,705.80, 2,557.62 and 883.08

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Solution

The fourth proportional to 1,705.80, 2,557.62 and 883.08 is: 1,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.80 : 2,557.62 = 883.08 : x
  2. Step 2: Convert to fraction form
    1,705.80/2,557.62 = 883.08/x
  3. Step 3: Cross multiply
    1,705.80x = 2,557.62 × 883.08
  4. Step 4: Simplify right side
    1,705.80x = 2,258,583.07
  5. Step 5: Solve for x
    x = 2,258,583.07/1,705.80
  6. Step 6: Final answer
    x = 1,324.06

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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.