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Finding the Fourth Proportional to 2,029.59, 3,043.49 and 860.13

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Solution

The fourth proportional to 2,029.59, 3,043.49 and 860.13 is: 1,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.59 : 3,043.49 = 860.13 : x
  2. Step 2: Convert to fraction form
    2,029.59/3,043.49 = 860.13/x
  3. Step 3: Cross multiply
    2,029.59x = 3,043.49 × 860.13
  4. Step 4: Simplify right side
    2,029.59x = 2,617,792.75
  5. Step 5: Solve for x
    x = 2,617,792.75/2,029.59
  6. Step 6: Final answer
    x = 1,289.81

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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.