Home / 5,405.40-8,101.70-4,035.80

Finding the Fourth Proportional to 5,405.40, 8,101.70 and 4,035.80

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Solution

The fourth proportional to 5,405.40, 8,101.70 and 4,035.80 is: 6,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.40 : 8,101.70 = 4,035.80 : x
  2. Step 2: Convert to fraction form
    5,405.40/8,101.70 = 4,035.80/x
  3. Step 3: Cross multiply
    5,405.40x = 8,101.70 × 4,035.80
  4. Step 4: Simplify right side
    5,405.40x = 32,696,840.86
  5. Step 5: Solve for x
    x = 32,696,840.86/5,405.40
  6. Step 6: Final answer
    x = 6,048.92

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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.