Home / 2,741.11-3,784.13-1,693.78

Finding the Fourth Proportional to 2,741.11, 3,784.13 and 1,693.78

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Solution

The fourth proportional to 2,741.11, 3,784.13 and 1,693.78 is: 2,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.11 : 3,784.13 = 1,693.78 : x
  2. Step 2: Convert to fraction form
    2,741.11/3,784.13 = 1,693.78/x
  3. Step 3: Cross multiply
    2,741.11x = 3,784.13 × 1,693.78
  4. Step 4: Simplify right side
    2,741.11x = 6,409,483.71
  5. Step 5: Solve for x
    x = 6,409,483.71/2,741.11
  6. Step 6: Final answer
    x = 2,338.28

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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.