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Finding the Fourth Proportional to 5,203.85, 7,805.63 and 2,428.99

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Solution

The fourth proportional to 5,203.85, 7,805.63 and 2,428.99 is: 3,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,203.85 : 7,805.63 = 2,428.99 : x
  2. Step 2: Convert to fraction form
    5,203.85/7,805.63 = 2,428.99/x
  3. Step 3: Cross multiply
    5,203.85x = 7,805.63 × 2,428.99
  4. Step 4: Simplify right side
    5,203.85x = 18,959,783.77
  5. Step 5: Solve for x
    x = 18,959,783.77/5,203.85
  6. Step 6: Final answer
    x = 3,643.42

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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.