Home / 5,406.25-8,109.38-1,302.25

Finding the Fourth Proportional to 5,406.25, 8,109.38 and 1,302.25

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Solution

The fourth proportional to 5,406.25, 8,109.38 and 1,302.25 is: 1,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.25 : 8,109.38 = 1,302.25 : x
  2. Step 2: Convert to fraction form
    5,406.25/8,109.38 = 1,302.25/x
  3. Step 3: Cross multiply
    5,406.25x = 8,109.38 × 1,302.25
  4. Step 4: Simplify right side
    5,406.25x = 10,560,433.59
  5. Step 5: Solve for x
    x = 10,560,433.59/5,406.25
  6. Step 6: Final answer
    x = 1,953.38

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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.