Home / 5,278.94-7,284.16-4,485.45

Finding the Fourth Proportional to 5,278.94, 7,284.16 and 4,485.45

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Solution

The fourth proportional to 5,278.94, 7,284.16 and 4,485.45 is: 6,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.94 : 7,284.16 = 4,485.45 : x
  2. Step 2: Convert to fraction form
    5,278.94/7,284.16 = 4,485.45/x
  3. Step 3: Cross multiply
    5,278.94x = 7,284.16 × 4,485.45
  4. Step 4: Simplify right side
    5,278.94x = 32,672,735.47
  5. Step 5: Solve for x
    x = 32,672,735.47/5,278.94
  6. Step 6: Final answer
    x = 6,189.26

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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.