Home / 2,822.56-3,895.38-1,580.56

Finding the Fourth Proportional to 2,822.56, 3,895.38 and 1,580.56

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Solution

The fourth proportional to 2,822.56, 3,895.38 and 1,580.56 is: 2,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.56 : 3,895.38 = 1,580.56 : x
  2. Step 2: Convert to fraction form
    2,822.56/3,895.38 = 1,580.56/x
  3. Step 3: Cross multiply
    2,822.56x = 3,895.38 × 1,580.56
  4. Step 4: Simplify right side
    2,822.56x = 6,156,881.81
  5. Step 5: Solve for x
    x = 6,156,881.81/2,822.56
  6. Step 6: Final answer
    x = 2,181.31

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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.