Home / 10,457.22-15,685.77-2,559.78

Finding the Fourth Proportional to 10,457.22, 15,685.77 and 2,559.78

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Solution

The fourth proportional to 10,457.22, 15,685.77 and 2,559.78 is: 3,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457.22 : 15,685.77 = 2,559.78 : x
  2. Step 2: Convert to fraction form
    10,457.22/15,685.77 = 2,559.78/x
  3. Step 3: Cross multiply
    10,457.22x = 15,685.77 × 2,559.78
  4. Step 4: Simplify right side
    10,457.22x = 40,152,120.33
  5. Step 5: Solve for x
    x = 40,152,120.33/10,457.22
  6. Step 6: Final answer
    x = 3,839.66

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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.