Home / 4,780.29-7,170.45-1,493.40

Finding the Fourth Proportional to 4,780.29, 7,170.45 and 1,493.40

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Solution

The fourth proportional to 4,780.29, 7,170.45 and 1,493.40 is: 2,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.29 : 7,170.45 = 1,493.40 : x
  2. Step 2: Convert to fraction form
    4,780.29/7,170.45 = 1,493.40/x
  3. Step 3: Cross multiply
    4,780.29x = 7,170.45 × 1,493.40
  4. Step 4: Simplify right side
    4,780.29x = 10,708,371.32
  5. Step 5: Solve for x
    x = 10,708,371.32/4,780.29
  6. Step 6: Final answer
    x = 2,240.11

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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.