Home / 4,945.81-7,422.47-1,828.76

Finding the Fourth Proportional to 4,945.81, 7,422.47 and 1,828.76

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Solution

The fourth proportional to 4,945.81, 7,422.47 and 1,828.76 is: 2,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.81 : 7,422.47 = 1,828.76 : x
  2. Step 2: Convert to fraction form
    4,945.81/7,422.47 = 1,828.76/x
  3. Step 3: Cross multiply
    4,945.81x = 7,422.47 × 1,828.76
  4. Step 4: Simplify right side
    4,945.81x = 13,573,957.62
  5. Step 5: Solve for x
    x = 13,573,957.62/4,945.81
  6. Step 6: Final answer
    x = 2,744.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.