Home / 2,988.64-4,124.10-1,662.28

Finding the Fourth Proportional to 2,988.64, 4,124.10 and 1,662.28

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Solution

The fourth proportional to 2,988.64, 4,124.10 and 1,662.28 is: 2,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.64 : 4,124.10 = 1,662.28 : x
  2. Step 2: Convert to fraction form
    2,988.64/4,124.10 = 1,662.28/x
  3. Step 3: Cross multiply
    2,988.64x = 4,124.10 × 1,662.28
  4. Step 4: Simplify right side
    2,988.64x = 6,855,408.95
  5. Step 5: Solve for x
    x = 6,855,408.95/2,988.64
  6. Step 6: Final answer
    x = 2,293.82

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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.