Home / 4,642-6,961.92-1,354.40

Finding the Fourth Proportional to 4,642, 6,961.92 and 1,354.40

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Solution

The fourth proportional to 4,642, 6,961.92 and 1,354.40 is: 2,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642 : 6,961.92 = 1,354.40 : x
  2. Step 2: Convert to fraction form
    4,642/6,961.92 = 1,354.40/x
  3. Step 3: Cross multiply
    4,642x = 6,961.92 × 1,354.40
  4. Step 4: Simplify right side
    4,642x = 9,429,224.45
  5. Step 5: Solve for x
    x = 9,429,224.45/4,642
  6. Step 6: Final answer
    x = 2,031.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.