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Finding the Fourth Proportional to 1,705.89, 2,556.36 and 925.23

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Solution

The fourth proportional to 1,705.89, 2,556.36 and 925.23 is: 1,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.89 : 2,556.36 = 925.23 : x
  2. Step 2: Convert to fraction form
    1,705.89/2,556.36 = 925.23/x
  3. Step 3: Cross multiply
    1,705.89x = 2,556.36 × 925.23
  4. Step 4: Simplify right side
    1,705.89x = 2,365,220.96
  5. Step 5: Solve for x
    x = 2,365,220.96/1,705.89
  6. Step 6: Final answer
    x = 1,386.50

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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.