Home / 5,655.12-8,486.40-2,536.80

Finding the Fourth Proportional to 5,655.12, 8,486.40 and 2,536.80

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Solution

The fourth proportional to 5,655.12, 8,486.40 and 2,536.80 is: 3,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.12 : 8,486.40 = 2,536.80 : x
  2. Step 2: Convert to fraction form
    5,655.12/8,486.40 = 2,536.80/x
  3. Step 3: Cross multiply
    5,655.12x = 8,486.40 × 2,536.80
  4. Step 4: Simplify right side
    5,655.12x = 21,528,299.52
  5. Step 5: Solve for x
    x = 21,528,299.52/5,655.12
  6. Step 6: Final answer
    x = 3,806.87

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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.