Home / 4,886.12-7,322.16-2,779.43

Finding the Fourth Proportional to 4,886.12, 7,322.16 and 2,779.43

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Solution

The fourth proportional to 4,886.12, 7,322.16 and 2,779.43 is: 4,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.12 : 7,322.16 = 2,779.43 : x
  2. Step 2: Convert to fraction form
    4,886.12/7,322.16 = 2,779.43/x
  3. Step 3: Cross multiply
    4,886.12x = 7,322.16 × 2,779.43
  4. Step 4: Simplify right side
    4,886.12x = 20,351,446.17
  5. Step 5: Solve for x
    x = 20,351,446.17/4,886.12
  6. Step 6: Final answer
    x = 4,165.15

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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.