Home / 7,278.38-10,045.78-4,625.27

Finding the Fourth Proportional to 7,278.38, 10,045.78 and 4,625.27

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Solution

The fourth proportional to 7,278.38, 10,045.78 and 4,625.27 is: 6,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.38 : 10,045.78 = 4,625.27 : x
  2. Step 2: Convert to fraction form
    7,278.38/10,045.78 = 4,625.27/x
  3. Step 3: Cross multiply
    7,278.38x = 10,045.78 × 4,625.27
  4. Step 4: Simplify right side
    7,278.38x = 46,464,383.07
  5. Step 5: Solve for x
    x = 46,464,383.07/7,278.38
  6. Step 6: Final answer
    x = 6,383.90

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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.