Home / 2,107.03-2,908.17-1,408

Finding the Fourth Proportional to 2,107.03, 2,908.17 and 1,408

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Solution

The fourth proportional to 2,107.03, 2,908.17 and 1,408 is: 1,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.03 : 2,908.17 = 1,408 : x
  2. Step 2: Convert to fraction form
    2,107.03/2,908.17 = 1,408/x
  3. Step 3: Cross multiply
    2,107.03x = 2,908.17 × 1,408
  4. Step 4: Simplify right side
    2,107.03x = 4,094,703.36
  5. Step 5: Solve for x
    x = 4,094,703.36/2,107.03
  6. Step 6: Final answer
    x = 1,943.35

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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.