Home / 5,911.20-8,159.16-4,143.24

Finding the Fourth Proportional to 5,911.20, 8,159.16 and 4,143.24

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Solution

The fourth proportional to 5,911.20, 8,159.16 and 4,143.24 is: 5,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.20 : 8,159.16 = 4,143.24 : x
  2. Step 2: Convert to fraction form
    5,911.20/8,159.16 = 4,143.24/x
  3. Step 3: Cross multiply
    5,911.20x = 8,159.16 × 4,143.24
  4. Step 4: Simplify right side
    5,911.20x = 33,805,358.08
  5. Step 5: Solve for x
    x = 33,805,358.08/5,911.20
  6. Step 6: Final answer
    x = 5,718.87

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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.