Home / 5,188.16-7,785.76-2,110.72

Finding the Fourth Proportional to 5,188.16, 7,785.76 and 2,110.72

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Solution

The fourth proportional to 5,188.16, 7,785.76 and 2,110.72 is: 3,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.16 : 7,785.76 = 2,110.72 : x
  2. Step 2: Convert to fraction form
    5,188.16/7,785.76 = 2,110.72/x
  3. Step 3: Cross multiply
    5,188.16x = 7,785.76 × 2,110.72
  4. Step 4: Simplify right side
    5,188.16x = 16,433,559.35
  5. Step 5: Solve for x
    x = 16,433,559.35/5,188.16
  6. Step 6: Final answer
    x = 3,167.51

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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.