Home / 2,709.85-3,742.68-1,824.12

Finding the Fourth Proportional to 2,709.85, 3,742.68 and 1,824.12

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Solution

The fourth proportional to 2,709.85, 3,742.68 and 1,824.12 is: 2,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.85 : 3,742.68 = 1,824.12 : x
  2. Step 2: Convert to fraction form
    2,709.85/3,742.68 = 1,824.12/x
  3. Step 3: Cross multiply
    2,709.85x = 3,742.68 × 1,824.12
  4. Step 4: Simplify right side
    2,709.85x = 6,827,069.61
  5. Step 5: Solve for x
    x = 6,827,069.61/2,709.85
  6. Step 6: Final answer
    x = 2,519.35

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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.