Home / 4,945.60-7,418.40-1,247.84

Finding the Fourth Proportional to 4,945.60, 7,418.40 and 1,247.84

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Solution

The fourth proportional to 4,945.60, 7,418.40 and 1,247.84 is: 1,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.60 : 7,418.40 = 1,247.84 : x
  2. Step 2: Convert to fraction form
    4,945.60/7,418.40 = 1,247.84/x
  3. Step 3: Cross multiply
    4,945.60x = 7,418.40 × 1,247.84
  4. Step 4: Simplify right side
    4,945.60x = 9,256,976.26
  5. Step 5: Solve for x
    x = 9,256,976.26/4,945.60
  6. Step 6: Final answer
    x = 1,871.76

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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.