Home / 1,523.85-2,285.64-743.55

Finding the Fourth Proportional to 1,523.85, 2,285.64 and 743.55

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Solution

The fourth proportional to 1,523.85, 2,285.64 and 743.55 is: 1,115.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.85 : 2,285.64 = 743.55 : x
  2. Step 2: Convert to fraction form
    1,523.85/2,285.64 = 743.55/x
  3. Step 3: Cross multiply
    1,523.85x = 2,285.64 × 743.55
  4. Step 4: Simplify right side
    1,523.85x = 1,699,487.62
  5. Step 5: Solve for x
    x = 1,699,487.62/1,523.85
  6. Step 6: Final answer
    x = 1,115.26

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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.