Home / 3,752.47-5,178.64-2,690.56

Finding the Fourth Proportional to 3,752.47, 5,178.64 and 2,690.56

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Solution

The fourth proportional to 3,752.47, 5,178.64 and 2,690.56 is: 3,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.47 : 5,178.64 = 2,690.56 : x
  2. Step 2: Convert to fraction form
    3,752.47/5,178.64 = 2,690.56/x
  3. Step 3: Cross multiply
    3,752.47x = 5,178.64 × 2,690.56
  4. Step 4: Simplify right side
    3,752.47x = 13,933,441.64
  5. Step 5: Solve for x
    x = 13,933,441.64/3,752.47
  6. Step 6: Final answer
    x = 3,713.14

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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.