Home / 2,137.36-2,949.80-1,298.28

Finding the Fourth Proportional to 2,137.36, 2,949.80 and 1,298.28

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Solution

The fourth proportional to 2,137.36, 2,949.80 and 1,298.28 is: 1,791.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.36 : 2,949.80 = 1,298.28 : x
  2. Step 2: Convert to fraction form
    2,137.36/2,949.80 = 1,298.28/x
  3. Step 3: Cross multiply
    2,137.36x = 2,949.80 × 1,298.28
  4. Step 4: Simplify right side
    2,137.36x = 3,829,666.34
  5. Step 5: Solve for x
    x = 3,829,666.34/2,137.36
  6. Step 6: Final answer
    x = 1,791.77

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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.