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Finding the Fourth Proportional to 5,277.99, 7,283.32 and 2,919.99

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Solution

The fourth proportional to 5,277.99, 7,283.32 and 2,919.99 is: 4,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.99 : 7,283.32 = 2,919.99 : x
  2. Step 2: Convert to fraction form
    5,277.99/7,283.32 = 2,919.99/x
  3. Step 3: Cross multiply
    5,277.99x = 7,283.32 × 2,919.99
  4. Step 4: Simplify right side
    5,277.99x = 21,267,177.85
  5. Step 5: Solve for x
    x = 21,267,177.85/5,277.99
  6. Step 6: Final answer
    x = 4,029.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.