Home / 2,268.84-3,130.02-1,428.87

Finding the Fourth Proportional to 2,268.84, 3,130.02 and 1,428.87

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Solution

The fourth proportional to 2,268.84, 3,130.02 and 1,428.87 is: 1,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.84 : 3,130.02 = 1,428.87 : x
  2. Step 2: Convert to fraction form
    2,268.84/3,130.02 = 1,428.87/x
  3. Step 3: Cross multiply
    2,268.84x = 3,130.02 × 1,428.87
  4. Step 4: Simplify right side
    2,268.84x = 4,472,391.68
  5. Step 5: Solve for x
    x = 4,472,391.68/2,268.84
  6. Step 6: Final answer
    x = 1,971.22

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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.