Home / 3,010.33-4,154.34-1,684.18

Finding the Fourth Proportional to 3,010.33, 4,154.34 and 1,684.18

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Solution

The fourth proportional to 3,010.33, 4,154.34 and 1,684.18 is: 2,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.33 : 4,154.34 = 1,684.18 : x
  2. Step 2: Convert to fraction form
    3,010.33/4,154.34 = 1,684.18/x
  3. Step 3: Cross multiply
    3,010.33x = 4,154.34 × 1,684.18
  4. Step 4: Simplify right side
    3,010.33x = 6,996,656.34
  5. Step 5: Solve for x
    x = 6,996,656.34/3,010.33
  6. Step 6: Final answer
    x = 2,324.22

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Half scale
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Find fourth proportional to 3,011.33, 4,155.72 and 1,685.18
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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.