Home / 2,411.76-3,636.90-2,127.60

Finding the Fourth Proportional to 2,411.76, 3,636.90 and 2,127.60

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Solution

The fourth proportional to 2,411.76, 3,636.90 and 2,127.60 is: 3,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.76 : 3,636.90 = 2,127.60 : x
  2. Step 2: Convert to fraction form
    2,411.76/3,636.90 = 2,127.60/x
  3. Step 3: Cross multiply
    2,411.76x = 3,636.90 × 2,127.60
  4. Step 4: Simplify right side
    2,411.76x = 7,737,868.44
  5. Step 5: Solve for x
    x = 7,737,868.44/2,411.76
  6. Step 6: Final answer
    x = 3,208.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.