Home / 5,278.92-7,284.17-4,485.47

Finding the Fourth Proportional to 5,278.92, 7,284.17 and 4,485.47

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Solution

The fourth proportional to 5,278.92, 7,284.17 and 4,485.47 is: 6,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.92 : 7,284.17 = 4,485.47 : x
  2. Step 2: Convert to fraction form
    5,278.92/7,284.17 = 4,485.47/x
  3. Step 3: Cross multiply
    5,278.92x = 7,284.17 × 4,485.47
  4. Step 4: Simplify right side
    5,278.92x = 32,672,867.16
  5. Step 5: Solve for x
    x = 32,672,867.16/5,278.92
  6. Step 6: Final answer
    x = 6,189.31

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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.