Home / 2,228.81-3,076.11-1,445.13

Finding the Fourth Proportional to 2,228.81, 3,076.11 and 1,445.13

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Solution

The fourth proportional to 2,228.81, 3,076.11 and 1,445.13 is: 1,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.81 : 3,076.11 = 1,445.13 : x
  2. Step 2: Convert to fraction form
    2,228.81/3,076.11 = 1,445.13/x
  3. Step 3: Cross multiply
    2,228.81x = 3,076.11 × 1,445.13
  4. Step 4: Simplify right side
    2,228.81x = 4,445,378.84
  5. Step 5: Solve for x
    x = 4,445,378.84/2,228.81
  6. Step 6: Final answer
    x = 1,994.51

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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.