Home / 1,764.30-2,639.61-1,515.54

Finding the Fourth Proportional to 1,764.30, 2,639.61 and 1,515.54

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Solution

The fourth proportional to 1,764.30, 2,639.61 and 1,515.54 is: 2,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.30 : 2,639.61 = 1,515.54 : x
  2. Step 2: Convert to fraction form
    1,764.30/2,639.61 = 1,515.54/x
  3. Step 3: Cross multiply
    1,764.30x = 2,639.61 × 1,515.54
  4. Step 4: Simplify right side
    1,764.30x = 4,000,434.54
  5. Step 5: Solve for x
    x = 4,000,434.54/1,764.30
  6. Step 6: Final answer
    x = 2,267.43

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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.