Home / 4,672.45-7,009.68-1,385.77

Finding the Fourth Proportional to 4,672.45, 7,009.68 and 1,385.77

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Solution

The fourth proportional to 4,672.45, 7,009.68 and 1,385.77 is: 2,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.45 : 7,009.68 = 1,385.77 : x
  2. Step 2: Convert to fraction form
    4,672.45/7,009.68 = 1,385.77/x
  3. Step 3: Cross multiply
    4,672.45x = 7,009.68 × 1,385.77
  4. Step 4: Simplify right side
    4,672.45x = 9,713,804.25
  5. Step 5: Solve for x
    x = 9,713,804.25/4,672.45
  6. Step 6: Final answer
    x = 2,078.95

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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.