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Finding the Fourth Proportional to 5,039.37, 7,557.98 and 1,919.25

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Solution

The fourth proportional to 5,039.37, 7,557.98 and 1,919.25 is: 2,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.37 : 7,557.98 = 1,919.25 : x
  2. Step 2: Convert to fraction form
    5,039.37/7,557.98 = 1,919.25/x
  3. Step 3: Cross multiply
    5,039.37x = 7,557.98 × 1,919.25
  4. Step 4: Simplify right side
    5,039.37x = 14,505,643.52
  5. Step 5: Solve for x
    x = 14,505,643.52/5,039.37
  6. Step 6: Final answer
    x = 2,878.46

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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.