Home / 5,407.34-8,110.08-2,119.28

Finding the Fourth Proportional to 5,407.34, 8,110.08 and 2,119.28

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Solution

The fourth proportional to 5,407.34, 8,110.08 and 2,119.28 is: 3,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.34 : 8,110.08 = 2,119.28 : x
  2. Step 2: Convert to fraction form
    5,407.34/8,110.08 = 2,119.28/x
  3. Step 3: Cross multiply
    5,407.34x = 8,110.08 × 2,119.28
  4. Step 4: Simplify right side
    5,407.34x = 17,187,530.34
  5. Step 5: Solve for x
    x = 17,187,530.34/5,407.34
  6. Step 6: Final answer
    x = 3,178.56

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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.