Home / 4,440.71-6,128.12-2,451.21

Finding the Fourth Proportional to 4,440.71, 6,128.12 and 2,451.21

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Solution

The fourth proportional to 4,440.71, 6,128.12 and 2,451.21 is: 3,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.71 : 6,128.12 = 2,451.21 : x
  2. Step 2: Convert to fraction form
    4,440.71/6,128.12 = 2,451.21/x
  3. Step 3: Cross multiply
    4,440.71x = 6,128.12 × 2,451.21
  4. Step 4: Simplify right side
    4,440.71x = 15,021,296.77
  5. Step 5: Solve for x
    x = 15,021,296.77/4,440.71
  6. Step 6: Final answer
    x = 3,382.64

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Half scale
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Double scale
Find fourth proportional to 4,441.71, 6,129.49 and 2,452.21
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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.