Home / 4,120.64-5,686.47-2,232.23

Finding the Fourth Proportional to 4,120.64, 5,686.47 and 2,232.23

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Solution

The fourth proportional to 4,120.64, 5,686.47 and 2,232.23 is: 3,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.64 : 5,686.47 = 2,232.23 : x
  2. Step 2: Convert to fraction form
    4,120.64/5,686.47 = 2,232.23/x
  3. Step 3: Cross multiply
    4,120.64x = 5,686.47 × 2,232.23
  4. Step 4: Simplify right side
    4,120.64x = 12,693,508.93
  5. Step 5: Solve for x
    x = 12,693,508.93/4,120.64
  6. Step 6: Final answer
    x = 3,080.47

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Half scale
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Double scale
Find fourth proportional to 4,121.64, 5,687.85 and 2,233.23
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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.