Home / 3,643.28-5,457.36-2,708

Finding the Fourth Proportional to 3,643.28, 5,457.36 and 2,708

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Solution

The fourth proportional to 3,643.28, 5,457.36 and 2,708 is: 4,056.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.28 : 5,457.36 = 2,708 : x
  2. Step 2: Convert to fraction form
    3,643.28/5,457.36 = 2,708/x
  3. Step 3: Cross multiply
    3,643.28x = 5,457.36 × 2,708
  4. Step 4: Simplify right side
    3,643.28x = 14,778,530.88
  5. Step 5: Solve for x
    x = 14,778,530.88/3,643.28
  6. Step 6: Final answer
    x = 4,056.38

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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.