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Finding the Fourth Proportional to 6,477.48, 9,715.92 and 1,860.48

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Solution

The fourth proportional to 6,477.48, 9,715.92 and 1,860.48 is: 2,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.48 : 9,715.92 = 1,860.48 : x
  2. Step 2: Convert to fraction form
    6,477.48/9,715.92 = 1,860.48/x
  3. Step 3: Cross multiply
    6,477.48x = 9,715.92 × 1,860.48
  4. Step 4: Simplify right side
    6,477.48x = 18,076,274.84
  5. Step 5: Solve for x
    x = 18,076,274.84/6,477.48
  6. Step 6: Final answer
    x = 2,790.63

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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.