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Finding the Fourth Proportional to 1,852.95, 2,779.07 and 682.95

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Solution

The fourth proportional to 1,852.95, 2,779.07 and 682.95 is: 1,024.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.95 : 2,779.07 = 682.95 : x
  2. Step 2: Convert to fraction form
    1,852.95/2,779.07 = 682.95/x
  3. Step 3: Cross multiply
    1,852.95x = 2,779.07 × 682.95
  4. Step 4: Simplify right side
    1,852.95x = 1,897,962.44
  5. Step 5: Solve for x
    x = 1,897,962.44/1,852.95
  6. Step 6: Final answer
    x = 1,024.29

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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.