Home / 4,945.30-7,382.68-4,772.30

Finding the Fourth Proportional to 4,945.30, 7,382.68 and 4,772.30

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Solution

The fourth proportional to 4,945.30, 7,382.68 and 4,772.30 is: 7,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.30 : 7,382.68 = 4,772.30 : x
  2. Step 2: Convert to fraction form
    4,945.30/7,382.68 = 4,772.30/x
  3. Step 3: Cross multiply
    4,945.30x = 7,382.68 × 4,772.30
  4. Step 4: Simplify right side
    4,945.30x = 35,232,314.92
  5. Step 5: Solve for x
    x = 35,232,314.92/4,945.30
  6. Step 6: Final answer
    x = 7,124.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.