Home / 5,157.80-7,737.74-2,039.28

Finding the Fourth Proportional to 5,157.80, 7,737.74 and 2,039.28

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Solution

The fourth proportional to 5,157.80, 7,737.74 and 2,039.28 is: 3,059.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.80 : 7,737.74 = 2,039.28 : x
  2. Step 2: Convert to fraction form
    5,157.80/7,737.74 = 2,039.28/x
  3. Step 3: Cross multiply
    5,157.80x = 7,737.74 × 2,039.28
  4. Step 4: Simplify right side
    5,157.80x = 15,779,408.23
  5. Step 5: Solve for x
    x = 15,779,408.23/5,157.80
  6. Step 6: Final answer
    x = 3,059.33

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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.