Home / 3,335.78-5,003.58-1,387.46

Finding the Fourth Proportional to 3,335.78, 5,003.58 and 1,387.46

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Solution

The fourth proportional to 3,335.78, 5,003.58 and 1,387.46 is: 2,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.78 : 5,003.58 = 1,387.46 : x
  2. Step 2: Convert to fraction form
    3,335.78/5,003.58 = 1,387.46/x
  3. Step 3: Cross multiply
    3,335.78x = 5,003.58 × 1,387.46
  4. Step 4: Simplify right side
    3,335.78x = 6,942,267.11
  5. Step 5: Solve for x
    x = 6,942,267.11/3,335.78
  6. Step 6: Final answer
    x = 2,081.15

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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.