Home / 2,911.46-4,010.76-2,164.13

Finding the Fourth Proportional to 2,911.46, 4,010.76 and 2,164.13

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Solution

The fourth proportional to 2,911.46, 4,010.76 and 2,164.13 is: 2,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.46 : 4,010.76 = 2,164.13 : x
  2. Step 2: Convert to fraction form
    2,911.46/4,010.76 = 2,164.13/x
  3. Step 3: Cross multiply
    2,911.46x = 4,010.76 × 2,164.13
  4. Step 4: Simplify right side
    2,911.46x = 8,679,806.04
  5. Step 5: Solve for x
    x = 8,679,806.04/2,911.46
  6. Step 6: Final answer
    x = 2,981.26

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Half scale
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Double scale
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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.