Home / 2,389.70-3,298.17-1,394.97

Finding the Fourth Proportional to 2,389.70, 3,298.17 and 1,394.97

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Solution

The fourth proportional to 2,389.70, 3,298.17 and 1,394.97 is: 1,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.70 : 3,298.17 = 1,394.97 : x
  2. Step 2: Convert to fraction form
    2,389.70/3,298.17 = 1,394.97/x
  3. Step 3: Cross multiply
    2,389.70x = 3,298.17 × 1,394.97
  4. Step 4: Simplify right side
    2,389.70x = 4,600,848.20
  5. Step 5: Solve for x
    x = 4,600,848.20/2,389.70
  6. Step 6: Final answer
    x = 1,925.29

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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.