Home / 4,412.76-6,619.20-1,815.72

Finding the Fourth Proportional to 4,412.76, 6,619.20 and 1,815.72

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Solution

The fourth proportional to 4,412.76, 6,619.20 and 1,815.72 is: 2,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,412.76 : 6,619.20 = 1,815.72 : x
  2. Step 2: Convert to fraction form
    4,412.76/6,619.20 = 1,815.72/x
  3. Step 3: Cross multiply
    4,412.76x = 6,619.20 × 1,815.72
  4. Step 4: Simplify right side
    4,412.76x = 12,018,613.82
  5. Step 5: Solve for x
    x = 12,018,613.82/4,412.76
  6. Step 6: Final answer
    x = 2,723.60

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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.