Home / 3,618.12-5,416.50-2,697.72

Finding the Fourth Proportional to 3,618.12, 5,416.50 and 2,697.72

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Solution

The fourth proportional to 3,618.12, 5,416.50 and 2,697.72 is: 4,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.12 : 5,416.50 = 2,697.72 : x
  2. Step 2: Convert to fraction form
    3,618.12/5,416.50 = 2,697.72/x
  3. Step 3: Cross multiply
    3,618.12x = 5,416.50 × 2,697.72
  4. Step 4: Simplify right side
    3,618.12x = 14,612,200.38
  5. Step 5: Solve for x
    x = 14,612,200.38/3,618.12
  6. Step 6: Final answer
    x = 4,038.62

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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.