Home / 2,779.08-3,835-1,520.06

Finding the Fourth Proportional to 2,779.08, 3,835 and 1,520.06

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Solution

The fourth proportional to 2,779.08, 3,835 and 1,520.06 is: 2,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.08 : 3,835 = 1,520.06 : x
  2. Step 2: Convert to fraction form
    2,779.08/3,835 = 1,520.06/x
  3. Step 3: Cross multiply
    2,779.08x = 3,835 × 1,520.06
  4. Step 4: Simplify right side
    2,779.08x = 5,829,430.10
  5. Step 5: Solve for x
    x = 5,829,430.10/2,779.08
  6. Step 6: Final answer
    x = 2,097.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.