Home / 7,328.80-10,990.77-3,378.43

Finding the Fourth Proportional to 7,328.80, 10,990.77 and 3,378.43

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Solution

The fourth proportional to 7,328.80, 10,990.77 and 3,378.43 is: 5,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.80 : 10,990.77 = 3,378.43 : x
  2. Step 2: Convert to fraction form
    7,328.80/10,990.77 = 3,378.43/x
  3. Step 3: Cross multiply
    7,328.80x = 10,990.77 × 3,378.43
  4. Step 4: Simplify right side
    7,328.80x = 37,131,547.09
  5. Step 5: Solve for x
    x = 37,131,547.09/7,328.80
  6. Step 6: Final answer
    x = 5,066.52

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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.