Home / 2,268.19-3,130-1,428.63

Finding the Fourth Proportional to 2,268.19, 3,130 and 1,428.63

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Solution

The fourth proportional to 2,268.19, 3,130 and 1,428.63 is: 1,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.19 : 3,130 = 1,428.63 : x
  2. Step 2: Convert to fraction form
    2,268.19/3,130 = 1,428.63/x
  3. Step 3: Cross multiply
    2,268.19x = 3,130 × 1,428.63
  4. Step 4: Simplify right side
    2,268.19x = 4,471,611.90
  5. Step 5: Solve for x
    x = 4,471,611.90/2,268.19
  6. Step 6: Final answer
    x = 1,971.45

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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.