Home / 2,453.03-3,384.32-1,390.64

Finding the Fourth Proportional to 2,453.03, 3,384.32 and 1,390.64

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Solution

The fourth proportional to 2,453.03, 3,384.32 and 1,390.64 is: 1,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.03 : 3,384.32 = 1,390.64 : x
  2. Step 2: Convert to fraction form
    2,453.03/3,384.32 = 1,390.64/x
  3. Step 3: Cross multiply
    2,453.03x = 3,384.32 × 1,390.64
  4. Step 4: Simplify right side
    2,453.03x = 4,706,374.24
  5. Step 5: Solve for x
    x = 4,706,374.24/2,453.03
  6. Step 6: Final answer
    x = 1,918.60

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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.