Home / 2,812.15-3,881.27-1,750.34

Finding the Fourth Proportional to 2,812.15, 3,881.27 and 1,750.34

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Solution

The fourth proportional to 2,812.15, 3,881.27 and 1,750.34 is: 2,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.15 : 3,881.27 = 1,750.34 : x
  2. Step 2: Convert to fraction form
    2,812.15/3,881.27 = 1,750.34/x
  3. Step 3: Cross multiply
    2,812.15x = 3,881.27 × 1,750.34
  4. Step 4: Simplify right side
    2,812.15x = 6,793,546.37
  5. Step 5: Solve for x
    x = 6,793,546.37/2,812.15
  6. Step 6: Final answer
    x = 2,415.78

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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.