Home / 2,455.84-3,389.21-1,407.97

Finding the Fourth Proportional to 2,455.84, 3,389.21 and 1,407.97

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Solution

The fourth proportional to 2,455.84, 3,389.21 and 1,407.97 is: 1,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.84 : 3,389.21 = 1,407.97 : x
  2. Step 2: Convert to fraction form
    2,455.84/3,389.21 = 1,407.97/x
  3. Step 3: Cross multiply
    2,455.84x = 3,389.21 × 1,407.97
  4. Step 4: Simplify right side
    2,455.84x = 4,771,906.00
  5. Step 5: Solve for x
    x = 4,771,906.00/2,455.84
  6. Step 6: Final answer
    x = 1,943.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.