Home / 5,405.40-7,460.19-3,168.18

Finding the Fourth Proportional to 5,405.40, 7,460.19 and 3,168.18

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Solution

The fourth proportional to 5,405.40, 7,460.19 and 3,168.18 is: 4,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.40 : 7,460.19 = 3,168.18 : x
  2. Step 2: Convert to fraction form
    5,405.40/7,460.19 = 3,168.18/x
  3. Step 3: Cross multiply
    5,405.40x = 7,460.19 × 3,168.18
  4. Step 4: Simplify right side
    5,405.40x = 23,635,224.75
  5. Step 5: Solve for x
    x = 23,635,224.75/5,405.40
  6. Step 6: Final answer
    x = 4,372.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.