Home / 2,072.40-3,108.60-1,423.32

Finding the Fourth Proportional to 2,072.40, 3,108.60 and 1,423.32

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Solution

The fourth proportional to 2,072.40, 3,108.60 and 1,423.32 is: 2,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.40 : 3,108.60 = 1,423.32 : x
  2. Step 2: Convert to fraction form
    2,072.40/3,108.60 = 1,423.32/x
  3. Step 3: Cross multiply
    2,072.40x = 3,108.60 × 1,423.32
  4. Step 4: Simplify right side
    2,072.40x = 4,424,532.55
  5. Step 5: Solve for x
    x = 4,424,532.55/2,072.40
  6. Step 6: Final answer
    x = 2,134.98

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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.