Home / 4,390.24-6,578-2,655.28

Finding the Fourth Proportional to 4,390.24, 6,578 and 2,655.28

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Solution

The fourth proportional to 4,390.24, 6,578 and 2,655.28 is: 3,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.24 : 6,578 = 2,655.28 : x
  2. Step 2: Convert to fraction form
    4,390.24/6,578 = 2,655.28/x
  3. Step 3: Cross multiply
    4,390.24x = 6,578 × 2,655.28
  4. Step 4: Simplify right side
    4,390.24x = 17,466,431.84
  5. Step 5: Solve for x
    x = 17,466,431.84/4,390.24
  6. Step 6: Final answer
    x = 3,978.47

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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.