Home / 6,418.78-9,628.50-1,802.14

Finding the Fourth Proportional to 6,418.78, 9,628.50 and 1,802.14

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Solution

The fourth proportional to 6,418.78, 9,628.50 and 1,802.14 is: 2,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.78 : 9,628.50 = 1,802.14 : x
  2. Step 2: Convert to fraction form
    6,418.78/9,628.50 = 1,802.14/x
  3. Step 3: Cross multiply
    6,418.78x = 9,628.50 × 1,802.14
  4. Step 4: Simplify right side
    6,418.78x = 17,351,904.99
  5. Step 5: Solve for x
    x = 17,351,904.99/6,418.78
  6. Step 6: Final answer
    x = 2,703.30

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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.