Home / 3,619.98-5,430.06-1,155.06

Finding the Fourth Proportional to 3,619.98, 5,430.06 and 1,155.06

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Solution

The fourth proportional to 3,619.98, 5,430.06 and 1,155.06 is: 1,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.98 : 5,430.06 = 1,155.06 : x
  2. Step 2: Convert to fraction form
    3,619.98/5,430.06 = 1,155.06/x
  3. Step 3: Cross multiply
    3,619.98x = 5,430.06 × 1,155.06
  4. Step 4: Simplify right side
    3,619.98x = 6,272,045.10
  5. Step 5: Solve for x
    x = 6,272,045.10/3,619.98
  6. Step 6: Final answer
    x = 1,732.62

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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.