Home / 2,329.76-3,215.12-1,281.81

Finding the Fourth Proportional to 2,329.76, 3,215.12 and 1,281.81

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Solution

The fourth proportional to 2,329.76, 3,215.12 and 1,281.81 is: 1,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.76 : 3,215.12 = 1,281.81 : x
  2. Step 2: Convert to fraction form
    2,329.76/3,215.12 = 1,281.81/x
  3. Step 3: Cross multiply
    2,329.76x = 3,215.12 × 1,281.81
  4. Step 4: Simplify right side
    2,329.76x = 4,121,166.56
  5. Step 5: Solve for x
    x = 4,121,166.56/2,329.76
  6. Step 6: Final answer
    x = 1,768.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.