Home / 2,415.82-3,623.68-1,117.30

Finding the Fourth Proportional to 2,415.82, 3,623.68 and 1,117.30

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Solution

The fourth proportional to 2,415.82, 3,623.68 and 1,117.30 is: 1,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.82 : 3,623.68 = 1,117.30 : x
  2. Step 2: Convert to fraction form
    2,415.82/3,623.68 = 1,117.30/x
  3. Step 3: Cross multiply
    2,415.82x = 3,623.68 × 1,117.30
  4. Step 4: Simplify right side
    2,415.82x = 4,048,737.66
  5. Step 5: Solve for x
    x = 4,048,737.66/2,415.82
  6. Step 6: Final answer
    x = 1,675.93

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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.