Home / 5,406.04-8,108.30-2,117.95

Finding the Fourth Proportional to 5,406.04, 8,108.30 and 2,117.95

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Solution

The fourth proportional to 5,406.04, 8,108.30 and 2,117.95 is: 3,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.04 : 8,108.30 = 2,117.95 : x
  2. Step 2: Convert to fraction form
    5,406.04/8,108.30 = 2,117.95/x
  3. Step 3: Cross multiply
    5,406.04x = 8,108.30 × 2,117.95
  4. Step 4: Simplify right side
    5,406.04x = 17,172,959.01
  5. Step 5: Solve for x
    x = 17,172,959.01/5,406.04
  6. Step 6: Final answer
    x = 3,176.62

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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.