Home / 3,415.76-5,124.30-1,335.68

Finding the Fourth Proportional to 3,415.76, 5,124.30 and 1,335.68

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Solution

The fourth proportional to 3,415.76, 5,124.30 and 1,335.68 is: 2,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.76 : 5,124.30 = 1,335.68 : x
  2. Step 2: Convert to fraction form
    3,415.76/5,124.30 = 1,335.68/x
  3. Step 3: Cross multiply
    3,415.76x = 5,124.30 × 1,335.68
  4. Step 4: Simplify right side
    3,415.76x = 6,844,425.02
  5. Step 5: Solve for x
    x = 6,844,425.02/3,415.76
  6. Step 6: Final answer
    x = 2,003.78

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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.