Home / 2,985.37-4,478.14-1,425.53

Finding the Fourth Proportional to 2,985.37, 4,478.14 and 1,425.53

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Solution

The fourth proportional to 2,985.37, 4,478.14 and 1,425.53 is: 2,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.37 : 4,478.14 = 1,425.53 : x
  2. Step 2: Convert to fraction form
    2,985.37/4,478.14 = 1,425.53/x
  3. Step 3: Cross multiply
    2,985.37x = 4,478.14 × 1,425.53
  4. Step 4: Simplify right side
    2,985.37x = 6,383,730.55
  5. Step 5: Solve for x
    x = 6,383,730.55/2,985.37
  6. Step 6: Final answer
    x = 2,138.34

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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.