Home / 3,385.10-5,080.08-1,438.68

Finding the Fourth Proportional to 3,385.10, 5,080.08 and 1,438.68

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Solution

The fourth proportional to 3,385.10, 5,080.08 and 1,438.68 is: 2,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.10 : 5,080.08 = 1,438.68 : x
  2. Step 2: Convert to fraction form
    3,385.10/5,080.08 = 1,438.68/x
  3. Step 3: Cross multiply
    3,385.10x = 5,080.08 × 1,438.68
  4. Step 4: Simplify right side
    3,385.10x = 7,308,609.49
  5. Step 5: Solve for x
    x = 7,308,609.49/3,385.10
  6. Step 6: Final answer
    x = 2,159.05

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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.