Home / 6,210.80-9,311.76-2,922.20

Finding the Fourth Proportional to 6,210.80, 9,311.76 and 2,922.20

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Solution

The fourth proportional to 6,210.80, 9,311.76 and 2,922.20 is: 4,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,210.80 : 9,311.76 = 2,922.20 : x
  2. Step 2: Convert to fraction form
    6,210.80/9,311.76 = 2,922.20/x
  3. Step 3: Cross multiply
    6,210.80x = 9,311.76 × 2,922.20
  4. Step 4: Simplify right side
    6,210.80x = 27,210,825.07
  5. Step 5: Solve for x
    x = 27,210,825.07/6,210.80
  6. Step 6: Final answer
    x = 4,381.21

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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.