Home / 1,160.56-1,741.32-430.16

Finding the Fourth Proportional to 1,160.56, 1,741.32 and 430.16

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Solution

The fourth proportional to 1,160.56, 1,741.32 and 430.16 is: 645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.56 : 1,741.32 = 430.16 : x
  2. Step 2: Convert to fraction form
    1,160.56/1,741.32 = 430.16/x
  3. Step 3: Cross multiply
    1,160.56x = 1,741.32 × 430.16
  4. Step 4: Simplify right side
    1,160.56x = 749,046.21
  5. Step 5: Solve for x
    x = 749,046.21/1,160.56
  6. Step 6: Final answer
    x = 645.42

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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.