Home / 4,508.40-6,762.54-1,221.80

Finding the Fourth Proportional to 4,508.40, 6,762.54 and 1,221.80

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Solution

The fourth proportional to 4,508.40, 6,762.54 and 1,221.80 is: 1,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.40 : 6,762.54 = 1,221.80 : x
  2. Step 2: Convert to fraction form
    4,508.40/6,762.54 = 1,221.80/x
  3. Step 3: Cross multiply
    4,508.40x = 6,762.54 × 1,221.80
  4. Step 4: Simplify right side
    4,508.40x = 8,262,471.37
  5. Step 5: Solve for x
    x = 8,262,471.37/4,508.40
  6. Step 6: Final answer
    x = 1,832.68

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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.