Home / 5,154.77-7,112.39-3,479.28

Finding the Fourth Proportional to 5,154.77, 7,112.39 and 3,479.28

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Solution

The fourth proportional to 5,154.77, 7,112.39 and 3,479.28 is: 4,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.77 : 7,112.39 = 3,479.28 : x
  2. Step 2: Convert to fraction form
    5,154.77/7,112.39 = 3,479.28/x
  3. Step 3: Cross multiply
    5,154.77x = 7,112.39 × 3,479.28
  4. Step 4: Simplify right side
    5,154.77x = 24,745,978.88
  5. Step 5: Solve for x
    x = 24,745,978.88/5,154.77
  6. Step 6: Final answer
    x = 4,800.60

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1.5x scale

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.