Home / 2,970.78-4,099.73-1,776.03

Finding the Fourth Proportional to 2,970.78, 4,099.73 and 1,776.03

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Solution

The fourth proportional to 2,970.78, 4,099.73 and 1,776.03 is: 2,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.78 : 4,099.73 = 1,776.03 : x
  2. Step 2: Convert to fraction form
    2,970.78/4,099.73 = 1,776.03/x
  3. Step 3: Cross multiply
    2,970.78x = 4,099.73 × 1,776.03
  4. Step 4: Simplify right side
    2,970.78x = 7,281,234.59
  5. Step 5: Solve for x
    x = 7,281,234.59/2,970.78
  6. Step 6: Final answer
    x = 2,450.95

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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.