Home / 3,353.03-5,031.86-1,378.79

Finding the Fourth Proportional to 3,353.03, 5,031.86 and 1,378.79

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Solution

The fourth proportional to 3,353.03, 5,031.86 and 1,378.79 is: 2,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.03 : 5,031.86 = 1,378.79 : x
  2. Step 2: Convert to fraction form
    3,353.03/5,031.86 = 1,378.79/x
  3. Step 3: Cross multiply
    3,353.03x = 5,031.86 × 1,378.79
  4. Step 4: Simplify right side
    3,353.03x = 6,937,865.07
  5. Step 5: Solve for x
    x = 6,937,865.07/3,353.03
  6. Step 6: Final answer
    x = 2,069.13

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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.