Home / 2,949.40-4,068.41-1,887.40

Finding the Fourth Proportional to 2,949.40, 4,068.41 and 1,887.40

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Solution

The fourth proportional to 2,949.40, 4,068.41 and 1,887.40 is: 2,603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.40 : 4,068.41 = 1,887.40 : x
  2. Step 2: Convert to fraction form
    2,949.40/4,068.41 = 1,887.40/x
  3. Step 3: Cross multiply
    2,949.40x = 4,068.41 × 1,887.40
  4. Step 4: Simplify right side
    2,949.40x = 7,678,717.03
  5. Step 5: Solve for x
    x = 7,678,717.03/2,949.40
  6. Step 6: Final answer
    x = 2,603.48

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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.