Home / 1,609.19-2,411.91-741.68

Finding the Fourth Proportional to 1,609.19, 2,411.91 and 741.68

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Solution

The fourth proportional to 1,609.19, 2,411.91 and 741.68 is: 1,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.19 : 2,411.91 = 741.68 : x
  2. Step 2: Convert to fraction form
    1,609.19/2,411.91 = 741.68/x
  3. Step 3: Cross multiply
    1,609.19x = 2,411.91 × 741.68
  4. Step 4: Simplify right side
    1,609.19x = 1,788,853.35
  5. Step 5: Solve for x
    x = 1,788,853.35/1,609.19
  6. Step 6: Final answer
    x = 1,111.65

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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.