Home / 4,649.28-6,409.92-3,390.48

Finding the Fourth Proportional to 4,649.28, 6,409.92 and 3,390.48

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Solution

The fourth proportional to 4,649.28, 6,409.92 and 3,390.48 is: 4,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.28 : 6,409.92 = 3,390.48 : x
  2. Step 2: Convert to fraction form
    4,649.28/6,409.92 = 3,390.48/x
  3. Step 3: Cross multiply
    4,649.28x = 6,409.92 × 3,390.48
  4. Step 4: Simplify right side
    4,649.28x = 21,732,705.56
  5. Step 5: Solve for x
    x = 21,732,705.56/4,649.28
  6. Step 6: Final answer
    x = 4,674.42

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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.