Home / 2,911.36-4,366.56-2,420.92

Finding the Fourth Proportional to 2,911.36, 4,366.56 and 2,420.92

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Solution

The fourth proportional to 2,911.36, 4,366.56 and 2,420.92 is: 3,630.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.36 : 4,366.56 = 2,420.92 : x
  2. Step 2: Convert to fraction form
    2,911.36/4,366.56 = 2,420.92/x
  3. Step 3: Cross multiply
    2,911.36x = 4,366.56 × 2,420.92
  4. Step 4: Simplify right side
    2,911.36x = 10,571,092.44
  5. Step 5: Solve for x
    x = 10,571,092.44/2,911.36
  6. Step 6: Final answer
    x = 3,630.98

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1.5x scale

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.