Home / 4,508.10-6,762.16-1,221.20

Finding the Fourth Proportional to 4,508.10, 6,762.16 and 1,221.20

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Solution

The fourth proportional to 4,508.10, 6,762.16 and 1,221.20 is: 1,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.10 : 6,762.16 = 1,221.20 : x
  2. Step 2: Convert to fraction form
    4,508.10/6,762.16 = 1,221.20/x
  3. Step 3: Cross multiply
    4,508.10x = 6,762.16 × 1,221.20
  4. Step 4: Simplify right side
    4,508.10x = 8,257,949.79
  5. Step 5: Solve for x
    x = 8,257,949.79/4,508.10
  6. Step 6: Final answer
    x = 1,831.80

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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.