Home / 3,012.87-4,520.61-1,165.28

Finding the Fourth Proportional to 3,012.87, 4,520.61 and 1,165.28

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Solution

The fourth proportional to 3,012.87, 4,520.61 and 1,165.28 is: 1,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.87 : 4,520.61 = 1,165.28 : x
  2. Step 2: Convert to fraction form
    3,012.87/4,520.61 = 1,165.28/x
  3. Step 3: Cross multiply
    3,012.87x = 4,520.61 × 1,165.28
  4. Step 4: Simplify right side
    3,012.87x = 5,267,776.42
  5. Step 5: Solve for x
    x = 5,267,776.42/3,012.87
  6. Step 6: Final answer
    x = 1,748.42

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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.