Home / 5,531.78-8,299.29-1,636.29

Finding the Fourth Proportional to 5,531.78, 8,299.29 and 1,636.29

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Solution

The fourth proportional to 5,531.78, 8,299.29 and 1,636.29 is: 2,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.78 : 8,299.29 = 1,636.29 : x
  2. Step 2: Convert to fraction form
    5,531.78/8,299.29 = 1,636.29/x
  3. Step 3: Cross multiply
    5,531.78x = 8,299.29 × 1,636.29
  4. Step 4: Simplify right side
    5,531.78x = 13,580,045.23
  5. Step 5: Solve for x
    x = 13,580,045.23/5,531.78
  6. Step 6: Final answer
    x = 2,454.91

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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.