Home / 3,615.21-4,988.15-2,043.09

Finding the Fourth Proportional to 3,615.21, 4,988.15 and 2,043.09

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Solution

The fourth proportional to 3,615.21, 4,988.15 and 2,043.09 is: 2,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.21 : 4,988.15 = 2,043.09 : x
  2. Step 2: Convert to fraction form
    3,615.21/4,988.15 = 2,043.09/x
  3. Step 3: Cross multiply
    3,615.21x = 4,988.15 × 2,043.09
  4. Step 4: Simplify right side
    3,615.21x = 10,191,229.17
  5. Step 5: Solve for x
    x = 10,191,229.17/3,615.21
  6. Step 6: Final answer
    x = 2,818.99

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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.