Home / 2,911.70-4,016.60-1,792.88

Finding the Fourth Proportional to 2,911.70, 4,016.60 and 1,792.88

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Solution

The fourth proportional to 2,911.70, 4,016.60 and 1,792.88 is: 2,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.70 : 4,016.60 = 1,792.88 : x
  2. Step 2: Convert to fraction form
    2,911.70/4,016.60 = 1,792.88/x
  3. Step 3: Cross multiply
    2,911.70x = 4,016.60 × 1,792.88
  4. Step 4: Simplify right side
    2,911.70x = 7,201,281.81
  5. Step 5: Solve for x
    x = 7,201,281.81/2,911.70
  6. Step 6: Final answer
    x = 2,473.22

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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.