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Finding the Fourth Proportional to 1,768.19, 2,652.29 and 535.69

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Solution

The fourth proportional to 1,768.19, 2,652.29 and 535.69 is: 803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.19 : 2,652.29 = 535.69 : x
  2. Step 2: Convert to fraction form
    1,768.19/2,652.29 = 535.69/x
  3. Step 3: Cross multiply
    1,768.19x = 2,652.29 × 535.69
  4. Step 4: Simplify right side
    1,768.19x = 1,420,803.43
  5. Step 5: Solve for x
    x = 1,420,803.43/1,768.19
  6. Step 6: Final answer
    x = 803.54

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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.