Home / 3,378.30-4,659.63-2,929.36

Finding the Fourth Proportional to 3,378.30, 4,659.63 and 2,929.36

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Solution

The fourth proportional to 3,378.30, 4,659.63 and 2,929.36 is: 4,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.30 : 4,659.63 = 2,929.36 : x
  2. Step 2: Convert to fraction form
    3,378.30/4,659.63 = 2,929.36/x
  3. Step 3: Cross multiply
    3,378.30x = 4,659.63 × 2,929.36
  4. Step 4: Simplify right side
    3,378.30x = 13,649,733.74
  5. Step 5: Solve for x
    x = 13,649,733.74/3,378.30
  6. Step 6: Final answer
    x = 4,040.41

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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.