Home / 5,911.76-8,159.88-3,428.24

Finding the Fourth Proportional to 5,911.76, 8,159.88 and 3,428.24

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Solution

The fourth proportional to 5,911.76, 8,159.88 and 3,428.24 is: 4,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.76 : 8,159.88 = 3,428.24 : x
  2. Step 2: Convert to fraction form
    5,911.76/8,159.88 = 3,428.24/x
  3. Step 3: Cross multiply
    5,911.76x = 8,159.88 × 3,428.24
  4. Step 4: Simplify right side
    5,911.76x = 27,974,027.01
  5. Step 5: Solve for x
    x = 27,974,027.01/5,911.76
  6. Step 6: Final answer
    x = 4,731.93

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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.