Home / 5,391.40-8,095.20-4,160.20

Finding the Fourth Proportional to 5,391.40, 8,095.20 and 4,160.20

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Solution

The fourth proportional to 5,391.40, 8,095.20 and 4,160.20 is: 6,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.40 : 8,095.20 = 4,160.20 : x
  2. Step 2: Convert to fraction form
    5,391.40/8,095.20 = 4,160.20/x
  3. Step 3: Cross multiply
    5,391.40x = 8,095.20 × 4,160.20
  4. Step 4: Simplify right side
    5,391.40x = 33,677,651.04
  5. Step 5: Solve for x
    x = 33,677,651.04/5,391.40
  6. Step 6: Final answer
    x = 6,246.55

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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.