Home / 1,828.78-2,756.10-1,653.46

Finding the Fourth Proportional to 1,828.78, 2,756.10 and 1,653.46

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Solution

The fourth proportional to 1,828.78, 2,756.10 and 1,653.46 is: 2,491.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.78 : 2,756.10 = 1,653.46 : x
  2. Step 2: Convert to fraction form
    1,828.78/2,756.10 = 1,653.46/x
  3. Step 3: Cross multiply
    1,828.78x = 2,756.10 × 1,653.46
  4. Step 4: Simplify right side
    1,828.78x = 4,557,101.11
  5. Step 5: Solve for x
    x = 4,557,101.11/1,828.78
  6. Step 6: Final answer
    x = 2,491.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.