Home / 5,239.94-7,861.53-1,779.62

Finding the Fourth Proportional to 5,239.94, 7,861.53 and 1,779.62

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Solution

The fourth proportional to 5,239.94, 7,861.53 and 1,779.62 is: 2,669.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.94 : 7,861.53 = 1,779.62 : x
  2. Step 2: Convert to fraction form
    5,239.94/7,861.53 = 1,779.62/x
  3. Step 3: Cross multiply
    5,239.94x = 7,861.53 × 1,779.62
  4. Step 4: Simplify right side
    5,239.94x = 13,990,536.02
  5. Step 5: Solve for x
    x = 13,990,536.02/5,239.94
  6. Step 6: Final answer
    x = 2,669.98

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1.5x scale

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.