Home / 5,717.52-7,890.12-3,623.36

Finding the Fourth Proportional to 5,717.52, 7,890.12 and 3,623.36

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Solution

The fourth proportional to 5,717.52, 7,890.12 and 3,623.36 is: 5,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.52 : 7,890.12 = 3,623.36 : x
  2. Step 2: Convert to fraction form
    5,717.52/7,890.12 = 3,623.36/x
  3. Step 3: Cross multiply
    5,717.52x = 7,890.12 × 3,623.36
  4. Step 4: Simplify right side
    5,717.52x = 28,588,745.20
  5. Step 5: Solve for x
    x = 28,588,745.20/5,717.52
  6. Step 6: Final answer
    x = 5,000.20

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1.5x scale

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.