Home / 5,417.65-8,128.29-2,493.75

Finding the Fourth Proportional to 5,417.65, 8,128.29 and 2,493.75

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Solution

The fourth proportional to 5,417.65, 8,128.29 and 2,493.75 is: 3,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.65 : 8,128.29 = 2,493.75 : x
  2. Step 2: Convert to fraction form
    5,417.65/8,128.29 = 2,493.75/x
  3. Step 3: Cross multiply
    5,417.65x = 8,128.29 × 2,493.75
  4. Step 4: Simplify right side
    5,417.65x = 20,269,923.19
  5. Step 5: Solve for x
    x = 20,269,923.19/5,417.65
  6. Step 6: Final answer
    x = 3,741.46

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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.