Home / 7,779.40-11,665.30-2,583.52

Finding the Fourth Proportional to 7,779.40, 11,665.30 and 2,583.52

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Solution

The fourth proportional to 7,779.40, 11,665.30 and 2,583.52 is: 3,874.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.40 : 11,665.30 = 2,583.52 : x
  2. Step 2: Convert to fraction form
    7,779.40/11,665.30 = 2,583.52/x
  3. Step 3: Cross multiply
    7,779.40x = 11,665.30 × 2,583.52
  4. Step 4: Simplify right side
    7,779.40x = 30,137,535.86
  5. Step 5: Solve for x
    x = 30,137,535.86/7,779.40
  6. Step 6: Final answer
    x = 3,874.02

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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.