Home / 3,720.42-5,124.32-2,773.18

Finding the Fourth Proportional to 3,720.42, 5,124.32 and 2,773.18

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Solution

The fourth proportional to 3,720.42, 5,124.32 and 2,773.18 is: 3,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.42 : 5,124.32 = 2,773.18 : x
  2. Step 2: Convert to fraction form
    3,720.42/5,124.32 = 2,773.18/x
  3. Step 3: Cross multiply
    3,720.42x = 5,124.32 × 2,773.18
  4. Step 4: Simplify right side
    3,720.42x = 14,210,636.12
  5. Step 5: Solve for x
    x = 14,210,636.12/3,720.42
  6. Step 6: Final answer
    x = 3,819.63

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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.