Home / 1,241.40-1,861.68-1,037.28

Finding the Fourth Proportional to 1,241.40, 1,861.68 and 1,037.28

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Solution

The fourth proportional to 1,241.40, 1,861.68 and 1,037.28 is: 1,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.40 : 1,861.68 = 1,037.28 : x
  2. Step 2: Convert to fraction form
    1,241.40/1,861.68 = 1,037.28/x
  3. Step 3: Cross multiply
    1,241.40x = 1,861.68 × 1,037.28
  4. Step 4: Simplify right side
    1,241.40x = 1,931,083.43
  5. Step 5: Solve for x
    x = 1,931,083.43/1,241.40
  6. Step 6: Final answer
    x = 1,555.57

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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.