Home / 2,228.81-3,077.16-1,432.49

Finding the Fourth Proportional to 2,228.81, 3,077.16 and 1,432.49

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Solution

The fourth proportional to 2,228.81, 3,077.16 and 1,432.49 is: 1,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.81 : 3,077.16 = 1,432.49 : x
  2. Step 2: Convert to fraction form
    2,228.81/3,077.16 = 1,432.49/x
  3. Step 3: Cross multiply
    2,228.81x = 3,077.16 × 1,432.49
  4. Step 4: Simplify right side
    2,228.81x = 4,408,000.93
  5. Step 5: Solve for x
    x = 4,408,000.93/2,228.81
  6. Step 6: Final answer
    x = 1,977.74

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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.