Home / 2,862.18-4,290.84-1,705.50

Finding the Fourth Proportional to 2,862.18, 4,290.84 and 1,705.50

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Solution

The fourth proportional to 2,862.18, 4,290.84 and 1,705.50 is: 2,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.18 : 4,290.84 = 1,705.50 : x
  2. Step 2: Convert to fraction form
    2,862.18/4,290.84 = 1,705.50/x
  3. Step 3: Cross multiply
    2,862.18x = 4,290.84 × 1,705.50
  4. Step 4: Simplify right side
    2,862.18x = 7,318,027.62
  5. Step 5: Solve for x
    x = 7,318,027.62/2,862.18
  6. Step 6: Final answer
    x = 2,556.80

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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.