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Finding the Fourth Proportional to 1,512.97, 2,269.75 and 525.71

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Solution

The fourth proportional to 1,512.97, 2,269.75 and 525.71 is: 788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.97 : 2,269.75 = 525.71 : x
  2. Step 2: Convert to fraction form
    1,512.97/2,269.75 = 525.71/x
  3. Step 3: Cross multiply
    1,512.97x = 2,269.75 × 525.71
  4. Step 4: Simplify right side
    1,512.97x = 1,193,230.27
  5. Step 5: Solve for x
    x = 1,193,230.27/1,512.97
  6. Step 6: Final answer
    x = 788.67

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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.