Home / 1,647.96-2,268.16-1,315.32

Finding the Fourth Proportional to 1,647.96, 2,268.16 and 1,315.32

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Solution

The fourth proportional to 1,647.96, 2,268.16 and 1,315.32 is: 1,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.96 : 2,268.16 = 1,315.32 : x
  2. Step 2: Convert to fraction form
    1,647.96/2,268.16 = 1,315.32/x
  3. Step 3: Cross multiply
    1,647.96x = 2,268.16 × 1,315.32
  4. Step 4: Simplify right side
    1,647.96x = 2,983,356.21
  5. Step 5: Solve for x
    x = 2,983,356.21/1,647.96
  6. Step 6: Final answer
    x = 1,810.33

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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.