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Finding the Fourth Proportional to 5,653.82, 7,802.32 and 3,135.79

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Solution

The fourth proportional to 5,653.82, 7,802.32 and 3,135.79 is: 4,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.82 : 7,802.32 = 3,135.79 : x
  2. Step 2: Convert to fraction form
    5,653.82/7,802.32 = 3,135.79/x
  3. Step 3: Cross multiply
    5,653.82x = 7,802.32 × 3,135.79
  4. Step 4: Simplify right side
    5,653.82x = 24,466,409.69
  5. Step 5: Solve for x
    x = 24,466,409.69/5,653.82
  6. Step 6: Final answer
    x = 4,327.41

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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.