Home / 1,161.24-1,741.86-339.51

Finding the Fourth Proportional to 1,161.24, 1,741.86 and 339.51

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Solution

The fourth proportional to 1,161.24, 1,741.86 and 339.51 is: 509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161.24 : 1,741.86 = 339.51 : x
  2. Step 2: Convert to fraction form
    1,161.24/1,741.86 = 339.51/x
  3. Step 3: Cross multiply
    1,161.24x = 1,741.86 × 339.51
  4. Step 4: Simplify right side
    1,161.24x = 591,378.89
  5. Step 5: Solve for x
    x = 591,378.89/1,161.24
  6. Step 6: Final answer
    x = 509.27

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Double scale
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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.