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Finding the Fourth Proportional to 1,524.55, 2,285.75 and 744.79

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Solution

The fourth proportional to 1,524.55, 2,285.75 and 744.79 is: 1,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.55 : 2,285.75 = 744.79 : x
  2. Step 2: Convert to fraction form
    1,524.55/2,285.75 = 744.79/x
  3. Step 3: Cross multiply
    1,524.55x = 2,285.75 × 744.79
  4. Step 4: Simplify right side
    1,524.55x = 1,702,400.02
  5. Step 5: Solve for x
    x = 1,702,400.02/1,524.55
  6. Step 6: Final answer
    x = 1,116.66

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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.