Home / 1,159.26-1,738.87-389.76

Finding the Fourth Proportional to 1,159.26, 1,738.87 and 389.76

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Solution

The fourth proportional to 1,159.26, 1,738.87 and 389.76 is: 584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.26 : 1,738.87 = 389.76 : x
  2. Step 2: Convert to fraction form
    1,159.26/1,738.87 = 389.76/x
  3. Step 3: Cross multiply
    1,159.26x = 1,738.87 × 389.76
  4. Step 4: Simplify right side
    1,159.26x = 677,741.97
  5. Step 5: Solve for x
    x = 677,741.97/1,159.26
  6. Step 6: Final answer
    x = 584.63

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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.