Home / 3,756.88-5,635.34-1,291.68

Finding the Fourth Proportional to 3,756.88, 5,635.34 and 1,291.68

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Solution

The fourth proportional to 3,756.88, 5,635.34 and 1,291.68 is: 1,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.88 : 5,635.34 = 1,291.68 : x
  2. Step 2: Convert to fraction form
    3,756.88/5,635.34 = 1,291.68/x
  3. Step 3: Cross multiply
    3,756.88x = 5,635.34 × 1,291.68
  4. Step 4: Simplify right side
    3,756.88x = 7,279,054.36
  5. Step 5: Solve for x
    x = 7,279,054.36/3,756.88
  6. Step 6: Final answer
    x = 1,937.53

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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.