Home / 1,162.18-1,743.30-392.68

Finding the Fourth Proportional to 1,162.18, 1,743.30 and 392.68

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Solution

The fourth proportional to 1,162.18, 1,743.30 and 392.68 is: 589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.18 : 1,743.30 = 392.68 : x
  2. Step 2: Convert to fraction form
    1,162.18/1,743.30 = 392.68/x
  3. Step 3: Cross multiply
    1,162.18x = 1,743.30 × 392.68
  4. Step 4: Simplify right side
    1,162.18x = 684,559.04
  5. Step 5: Solve for x
    x = 684,559.04/1,162.18
  6. Step 6: Final answer
    x = 589.03

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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.