Home / 3,425.64-5,138.50-1,117.14

Finding the Fourth Proportional to 3,425.64, 5,138.50 and 1,117.14

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Solution

The fourth proportional to 3,425.64, 5,138.50 and 1,117.14 is: 1,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.64 : 5,138.50 = 1,117.14 : x
  2. Step 2: Convert to fraction form
    3,425.64/5,138.50 = 1,117.14/x
  3. Step 3: Cross multiply
    3,425.64x = 5,138.50 × 1,117.14
  4. Step 4: Simplify right side
    3,425.64x = 5,740,423.89
  5. Step 5: Solve for x
    x = 5,740,423.89/3,425.64
  6. Step 6: Final answer
    x = 1,675.72

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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.