Home / 1,836.78-2,529.54-1,615.65

Finding the Fourth Proportional to 1,836.78, 2,529.54 and 1,615.65

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Solution

The fourth proportional to 1,836.78, 2,529.54 and 1,615.65 is: 2,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.78 : 2,529.54 = 1,615.65 : x
  2. Step 2: Convert to fraction form
    1,836.78/2,529.54 = 1,615.65/x
  3. Step 3: Cross multiply
    1,836.78x = 2,529.54 × 1,615.65
  4. Step 4: Simplify right side
    1,836.78x = 4,086,851.30
  5. Step 5: Solve for x
    x = 4,086,851.30/1,836.78
  6. Step 6: Final answer
    x = 2,225.01

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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.