Home / 5,815.40-8,717.74-3,960.52

Finding the Fourth Proportional to 5,815.40, 8,717.74 and 3,960.52

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Solution

The fourth proportional to 5,815.40, 8,717.74 and 3,960.52 is: 5,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.40 : 8,717.74 = 3,960.52 : x
  2. Step 2: Convert to fraction form
    5,815.40/8,717.74 = 3,960.52/x
  3. Step 3: Cross multiply
    5,815.40x = 8,717.74 × 3,960.52
  4. Step 4: Simplify right side
    5,815.40x = 34,526,783.62
  5. Step 5: Solve for x
    x = 34,526,783.62/5,815.40
  6. Step 6: Final answer
    x = 5,937.13

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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.