Home / 2,620.61-3,617.72-1,770.08

Finding the Fourth Proportional to 2,620.61, 3,617.72 and 1,770.08

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Solution

The fourth proportional to 2,620.61, 3,617.72 and 1,770.08 is: 2,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.61 : 3,617.72 = 1,770.08 : x
  2. Step 2: Convert to fraction form
    2,620.61/3,617.72 = 1,770.08/x
  3. Step 3: Cross multiply
    2,620.61x = 3,617.72 × 1,770.08
  4. Step 4: Simplify right side
    2,620.61x = 6,403,626.88
  5. Step 5: Solve for x
    x = 6,403,626.88/2,620.61
  6. Step 6: Final answer
    x = 2,443.57

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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.