Home / 5,740.36-7,920.75-3,382.18

Finding the Fourth Proportional to 5,740.36, 7,920.75 and 3,382.18

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Solution

The fourth proportional to 5,740.36, 7,920.75 and 3,382.18 is: 4,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.36 : 7,920.75 = 3,382.18 : x
  2. Step 2: Convert to fraction form
    5,740.36/7,920.75 = 3,382.18/x
  3. Step 3: Cross multiply
    5,740.36x = 7,920.75 × 3,382.18
  4. Step 4: Simplify right side
    5,740.36x = 26,789,382.43
  5. Step 5: Solve for x
    x = 26,789,382.43/5,740.36
  6. Step 6: Final answer
    x = 4,666.85

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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.