Home / 1,766.34-2,647.83-611.28

Finding the Fourth Proportional to 1,766.34, 2,647.83 and 611.28

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Solution

The fourth proportional to 1,766.34, 2,647.83 and 611.28 is: 916.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.34 : 2,647.83 = 611.28 : x
  2. Step 2: Convert to fraction form
    1,766.34/2,647.83 = 611.28/x
  3. Step 3: Cross multiply
    1,766.34x = 2,647.83 × 611.28
  4. Step 4: Simplify right side
    1,766.34x = 1,618,565.52
  5. Step 5: Solve for x
    x = 1,618,565.52/1,766.34
  6. Step 6: Final answer
    x = 916.34

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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.