Home / 5,187.48-7,778.93-1,488.85

Finding the Fourth Proportional to 5,187.48, 7,778.93 and 1,488.85

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Solution

The fourth proportional to 5,187.48, 7,778.93 and 1,488.85 is: 2,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.48 : 7,778.93 = 1,488.85 : x
  2. Step 2: Convert to fraction form
    5,187.48/7,778.93 = 1,488.85/x
  3. Step 3: Cross multiply
    5,187.48x = 7,778.93 × 1,488.85
  4. Step 4: Simplify right side
    5,187.48x = 11,581,662.21
  5. Step 5: Solve for x
    x = 11,581,662.21/5,187.48
  6. Step 6: Final answer
    x = 2,232.62

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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.