Home / 2,073.90-2,861.94-1,142.40

Finding the Fourth Proportional to 2,073.90, 2,861.94 and 1,142.40

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Solution

The fourth proportional to 2,073.90, 2,861.94 and 1,142.40 is: 1,576.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.90 : 2,861.94 = 1,142.40 : x
  2. Step 2: Convert to fraction form
    2,073.90/2,861.94 = 1,142.40/x
  3. Step 3: Cross multiply
    2,073.90x = 2,861.94 × 1,142.40
  4. Step 4: Simplify right side
    2,073.90x = 3,269,480.26
  5. Step 5: Solve for x
    x = 3,269,480.26/2,073.90
  6. Step 6: Final answer
    x = 1,576.49

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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.