Home / 5,315.67-7,973.44-2,391.91

Finding the Fourth Proportional to 5,315.67, 7,973.44 and 2,391.91

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Solution

The fourth proportional to 5,315.67, 7,973.44 and 2,391.91 is: 3,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.67 : 7,973.44 = 2,391.91 : x
  2. Step 2: Convert to fraction form
    5,315.67/7,973.44 = 2,391.91/x
  3. Step 3: Cross multiply
    5,315.67x = 7,973.44 × 2,391.91
  4. Step 4: Simplify right side
    5,315.67x = 19,071,724.96
  5. Step 5: Solve for x
    x = 19,071,724.96/5,315.67
  6. Step 6: Final answer
    x = 3,587.83

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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.