Home / 4,002.08-5,520.65-2,808.86

Finding the Fourth Proportional to 4,002.08, 5,520.65 and 2,808.86

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Solution

The fourth proportional to 4,002.08, 5,520.65 and 2,808.86 is: 3,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.08 : 5,520.65 = 2,808.86 : x
  2. Step 2: Convert to fraction form
    4,002.08/5,520.65 = 2,808.86/x
  3. Step 3: Cross multiply
    4,002.08x = 5,520.65 × 2,808.86
  4. Step 4: Simplify right side
    4,002.08x = 15,506,732.96
  5. Step 5: Solve for x
    x = 15,506,732.96/4,002.08
  6. Step 6: Final answer
    x = 3,874.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.