Home / 1,653.72-2,480.55-1,395.38

Finding the Fourth Proportional to 1,653.72, 2,480.55 and 1,395.38

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Solution

The fourth proportional to 1,653.72, 2,480.55 and 1,395.38 is: 2,093.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.72 : 2,480.55 = 1,395.38 : x
  2. Step 2: Convert to fraction form
    1,653.72/2,480.55 = 1,395.38/x
  3. Step 3: Cross multiply
    1,653.72x = 2,480.55 × 1,395.38
  4. Step 4: Simplify right side
    1,653.72x = 3,461,297.46
  5. Step 5: Solve for x
    x = 3,461,297.46/1,653.72
  6. Step 6: Final answer
    x = 2,093.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.