Home / 7,740.68-11,600.94-3,118.28

Finding the Fourth Proportional to 7,740.68, 11,600.94 and 3,118.28

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Solution

The fourth proportional to 7,740.68, 11,600.94 and 3,118.28 is: 4,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.68 : 11,600.94 = 3,118.28 : x
  2. Step 2: Convert to fraction form
    7,740.68/11,600.94 = 3,118.28/x
  3. Step 3: Cross multiply
    7,740.68x = 11,600.94 × 3,118.28
  4. Step 4: Simplify right side
    7,740.68x = 36,174,979.18
  5. Step 5: Solve for x
    x = 36,174,979.18/7,740.68
  6. Step 6: Final answer
    x = 4,673.36

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1.5x scale

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.