Home / 2,636.84-3,638.48-2,240.10

Finding the Fourth Proportional to 2,636.84, 3,638.48 and 2,240.10

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Solution

The fourth proportional to 2,636.84, 3,638.48 and 2,240.10 is: 3,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.84 : 3,638.48 = 2,240.10 : x
  2. Step 2: Convert to fraction form
    2,636.84/3,638.48 = 2,240.10/x
  3. Step 3: Cross multiply
    2,636.84x = 3,638.48 × 2,240.10
  4. Step 4: Simplify right side
    2,636.84x = 8,150,547.85
  5. Step 5: Solve for x
    x = 8,150,547.85/2,636.84
  6. Step 6: Final answer
    x = 3,091.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.