Home / 2,812.42-3,881.25-1,750.81

Finding the Fourth Proportional to 2,812.42, 3,881.25 and 1,750.81

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Solution

The fourth proportional to 2,812.42, 3,881.25 and 1,750.81 is: 2,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.42 : 3,881.25 = 1,750.81 : x
  2. Step 2: Convert to fraction form
    2,812.42/3,881.25 = 1,750.81/x
  3. Step 3: Cross multiply
    2,812.42x = 3,881.25 × 1,750.81
  4. Step 4: Simplify right side
    2,812.42x = 6,795,331.31
  5. Step 5: Solve for x
    x = 6,795,331.31/2,812.42
  6. Step 6: Final answer
    x = 2,416.19

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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.