Home / 5,531.12-8,296.68-1,638.26

Finding the Fourth Proportional to 5,531.12, 8,296.68 and 1,638.26

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Solution

The fourth proportional to 5,531.12, 8,296.68 and 1,638.26 is: 2,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.12 : 8,296.68 = 1,638.26 : x
  2. Step 2: Convert to fraction form
    5,531.12/8,296.68 = 1,638.26/x
  3. Step 3: Cross multiply
    5,531.12x = 8,296.68 × 1,638.26
  4. Step 4: Simplify right side
    5,531.12x = 13,592,118.98
  5. Step 5: Solve for x
    x = 13,592,118.98/5,531.12
  6. Step 6: Final answer
    x = 2,457.39

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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.