Home / 6,821.80-10,223.34-3,528.20

Finding the Fourth Proportional to 6,821.80, 10,223.34 and 3,528.20

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Solution

The fourth proportional to 6,821.80, 10,223.34 and 3,528.20 is: 5,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.80 : 10,223.34 = 3,528.20 : x
  2. Step 2: Convert to fraction form
    6,821.80/10,223.34 = 3,528.20/x
  3. Step 3: Cross multiply
    6,821.80x = 10,223.34 × 3,528.20
  4. Step 4: Simplify right side
    6,821.80x = 36,069,988.19
  5. Step 5: Solve for x
    x = 36,069,988.19/6,821.80
  6. Step 6: Final answer
    x = 5,287.46

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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.