Home / 5,187.83-7,778.60-2,068.31

Finding the Fourth Proportional to 5,187.83, 7,778.60 and 2,068.31

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Solution

The fourth proportional to 5,187.83, 7,778.60 and 2,068.31 is: 3,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.83 : 7,778.60 = 2,068.31 : x
  2. Step 2: Convert to fraction form
    5,187.83/7,778.60 = 2,068.31/x
  3. Step 3: Cross multiply
    5,187.83x = 7,778.60 × 2,068.31
  4. Step 4: Simplify right side
    5,187.83x = 16,088,506.93
  5. Step 5: Solve for x
    x = 16,088,506.93/5,187.83
  6. Step 6: Final answer
    x = 3,101.20

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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.