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Finding the Fourth Proportional to 2,518.93, 3,779.30 and 875.41

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Solution

The fourth proportional to 2,518.93, 3,779.30 and 875.41 is: 1,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.93 : 3,779.30 = 875.41 : x
  2. Step 2: Convert to fraction form
    2,518.93/3,779.30 = 875.41/x
  3. Step 3: Cross multiply
    2,518.93x = 3,779.30 × 875.41
  4. Step 4: Simplify right side
    2,518.93x = 3,308,432.64
  5. Step 5: Solve for x
    x = 3,308,432.64/2,518.93
  6. Step 6: Final answer
    x = 1,313.43

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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.