Home / 6,428.81-9,643.28-2,268.05

Finding the Fourth Proportional to 6,428.81, 9,643.28 and 2,268.05

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Solution

The fourth proportional to 6,428.81, 9,643.28 and 2,268.05 is: 3,402.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.81 : 9,643.28 = 2,268.05 : x
  2. Step 2: Convert to fraction form
    6,428.81/9,643.28 = 2,268.05/x
  3. Step 3: Cross multiply
    6,428.81x = 9,643.28 × 2,268.05
  4. Step 4: Simplify right side
    6,428.81x = 21,871,381.65
  5. Step 5: Solve for x
    x = 21,871,381.65/6,428.81
  6. Step 6: Final answer
    x = 3,402.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.