Home / 7,780.67-10,739.27-4,636.25

Finding the Fourth Proportional to 7,780.67, 10,739.27 and 4,636.25

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Solution

The fourth proportional to 7,780.67, 10,739.27 and 4,636.25 is: 6,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.67 : 10,739.27 = 4,636.25 : x
  2. Step 2: Convert to fraction form
    7,780.67/10,739.27 = 4,636.25/x
  3. Step 3: Cross multiply
    7,780.67x = 10,739.27 × 4,636.25
  4. Step 4: Simplify right side
    7,780.67x = 49,789,917.36
  5. Step 5: Solve for x
    x = 49,789,917.36/7,780.67
  6. Step 6: Final answer
    x = 6,399.18

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1.5x scale

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.