Home / 7,727.29-10,663.67-4,190.50

Finding the Fourth Proportional to 7,727.29, 10,663.67 and 4,190.50

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Solution

The fourth proportional to 7,727.29, 10,663.67 and 4,190.50 is: 5,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.29 : 10,663.67 = 4,190.50 : x
  2. Step 2: Convert to fraction form
    7,727.29/10,663.67 = 4,190.50/x
  3. Step 3: Cross multiply
    7,727.29x = 10,663.67 × 4,190.50
  4. Step 4: Simplify right side
    7,727.29x = 44,686,109.14
  5. Step 5: Solve for x
    x = 44,686,109.14/7,727.29
  6. Step 6: Final answer
    x = 5,782.90

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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.