Home / 4,420.50-6,630.78-1,342.50

Finding the Fourth Proportional to 4,420.50, 6,630.78 and 1,342.50

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Solution

The fourth proportional to 4,420.50, 6,630.78 and 1,342.50 is: 2,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.50 : 6,630.78 = 1,342.50 : x
  2. Step 2: Convert to fraction form
    4,420.50/6,630.78 = 1,342.50/x
  3. Step 3: Cross multiply
    4,420.50x = 6,630.78 × 1,342.50
  4. Step 4: Simplify right side
    4,420.50x = 8,901,822.15
  5. Step 5: Solve for x
    x = 8,901,822.15/4,420.50
  6. Step 6: Final answer
    x = 2,013.76

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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.