Home / 7,780.22-10,736-4,377.02

Finding the Fourth Proportional to 7,780.22, 10,736 and 4,377.02

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Solution

The fourth proportional to 7,780.22, 10,736 and 4,377.02 is: 6,039.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.22 : 10,736 = 4,377.02 : x
  2. Step 2: Convert to fraction form
    7,780.22/10,736 = 4,377.02/x
  3. Step 3: Cross multiply
    7,780.22x = 10,736 × 4,377.02
  4. Step 4: Simplify right side
    7,780.22x = 46,991,686.72
  5. Step 5: Solve for x
    x = 46,991,686.72/7,780.22
  6. Step 6: Final answer
    x = 6,039.89

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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.