Home / 2,829.90-4,222.14-2,518.05

Finding the Fourth Proportional to 2,829.90, 4,222.14 and 2,518.05

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Solution

The fourth proportional to 2,829.90, 4,222.14 and 2,518.05 is: 3,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.90 : 4,222.14 = 2,518.05 : x
  2. Step 2: Convert to fraction form
    2,829.90/4,222.14 = 2,518.05/x
  3. Step 3: Cross multiply
    2,829.90x = 4,222.14 × 2,518.05
  4. Step 4: Simplify right side
    2,829.90x = 10,631,559.63
  5. Step 5: Solve for x
    x = 10,631,559.63/2,829.90
  6. Step 6: Final answer
    x = 3,756.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.