Home / 1,645.08-2,268.74-1,085.16

Finding the Fourth Proportional to 1,645.08, 2,268.74 and 1,085.16

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Solution

The fourth proportional to 1,645.08, 2,268.74 and 1,085.16 is: 1,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.08 : 2,268.74 = 1,085.16 : x
  2. Step 2: Convert to fraction form
    1,645.08/2,268.74 = 1,085.16/x
  3. Step 3: Cross multiply
    1,645.08x = 2,268.74 × 1,085.16
  4. Step 4: Simplify right side
    1,645.08x = 2,461,945.90
  5. Step 5: Solve for x
    x = 2,461,945.90/1,645.08
  6. Step 6: Final answer
    x = 1,496.55

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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.