Home / 2,489.34-3,730.21-1,253.30

Finding the Fourth Proportional to 2,489.34, 3,730.21 and 1,253.30

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Solution

The fourth proportional to 2,489.34, 3,730.21 and 1,253.30 is: 1,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.34 : 3,730.21 = 1,253.30 : x
  2. Step 2: Convert to fraction form
    2,489.34/3,730.21 = 1,253.30/x
  3. Step 3: Cross multiply
    2,489.34x = 3,730.21 × 1,253.30
  4. Step 4: Simplify right side
    2,489.34x = 4,675,072.19
  5. Step 5: Solve for x
    x = 4,675,072.19/2,489.34
  6. Step 6: Final answer
    x = 1,878.04

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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.