Home / 2,407.08-3,615.66-2,138.88

Finding the Fourth Proportional to 2,407.08, 3,615.66 and 2,138.88

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Solution

The fourth proportional to 2,407.08, 3,615.66 and 2,138.88 is: 3,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.08 : 3,615.66 = 2,138.88 : x
  2. Step 2: Convert to fraction form
    2,407.08/3,615.66 = 2,138.88/x
  3. Step 3: Cross multiply
    2,407.08x = 3,615.66 × 2,138.88
  4. Step 4: Simplify right side
    2,407.08x = 7,733,462.86
  5. Step 5: Solve for x
    x = 7,733,462.86/2,407.08
  6. Step 6: Final answer
    x = 3,212.80

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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.