Home / 5,289.21-7,934.69-1,779.53

Finding the Fourth Proportional to 5,289.21, 7,934.69 and 1,779.53

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Solution

The fourth proportional to 5,289.21, 7,934.69 and 1,779.53 is: 2,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.21 : 7,934.69 = 1,779.53 : x
  2. Step 2: Convert to fraction form
    5,289.21/7,934.69 = 1,779.53/x
  3. Step 3: Cross multiply
    5,289.21x = 7,934.69 × 1,779.53
  4. Step 4: Simplify right side
    5,289.21x = 14,120,018.90
  5. Step 5: Solve for x
    x = 14,120,018.90/5,289.21
  6. Step 6: Final answer
    x = 2,669.59

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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.