Home / 6,454.80-9,679.32-1,836.72

Finding the Fourth Proportional to 6,454.80, 9,679.32 and 1,836.72

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Solution

The fourth proportional to 6,454.80, 9,679.32 and 1,836.72 is: 2,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.80 : 9,679.32 = 1,836.72 : x
  2. Step 2: Convert to fraction form
    6,454.80/9,679.32 = 1,836.72/x
  3. Step 3: Cross multiply
    6,454.80x = 9,679.32 × 1,836.72
  4. Step 4: Simplify right side
    6,454.80x = 17,778,200.63
  5. Step 5: Solve for x
    x = 17,778,200.63/6,454.80
  6. Step 6: Final answer
    x = 2,754.26

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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.