Home / 1,635.05-2,255.65-1,074.80

Finding the Fourth Proportional to 1,635.05, 2,255.65 and 1,074.80

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Solution

The fourth proportional to 1,635.05, 2,255.65 and 1,074.80 is: 1,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.05 : 2,255.65 = 1,074.80 : x
  2. Step 2: Convert to fraction form
    1,635.05/2,255.65 = 1,074.80/x
  3. Step 3: Cross multiply
    1,635.05x = 2,255.65 × 1,074.80
  4. Step 4: Simplify right side
    1,635.05x = 2,424,358.65
  5. Step 5: Solve for x
    x = 2,424,358.65/1,635.05
  6. Step 6: Final answer
    x = 1,482.75

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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.