Home / 3,165.74-4,362.54-2,279.87

Finding the Fourth Proportional to 3,165.74, 4,362.54 and 2,279.87

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Solution

The fourth proportional to 3,165.74, 4,362.54 and 2,279.87 is: 3,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.74 : 4,362.54 = 2,279.87 : x
  2. Step 2: Convert to fraction form
    3,165.74/4,362.54 = 2,279.87/x
  3. Step 3: Cross multiply
    3,165.74x = 4,362.54 × 2,279.87
  4. Step 4: Simplify right side
    3,165.74x = 9,946,024.07
  5. Step 5: Solve for x
    x = 9,946,024.07/3,165.74
  6. Step 6: Final answer
    x = 3,141.77

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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.