Home / 3,521.06-5,281.72-923.92

Finding the Fourth Proportional to 3,521.06, 5,281.72 and 923.92

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Solution

The fourth proportional to 3,521.06, 5,281.72 and 923.92 is: 1,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.06 : 5,281.72 = 923.92 : x
  2. Step 2: Convert to fraction form
    3,521.06/5,281.72 = 923.92/x
  3. Step 3: Cross multiply
    3,521.06x = 5,281.72 × 923.92
  4. Step 4: Simplify right side
    3,521.06x = 4,879,886.74
  5. Step 5: Solve for x
    x = 4,879,886.74/3,521.06
  6. Step 6: Final answer
    x = 1,385.91

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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.