Home / 7,220.40-10,822.32-3,935.04

Finding the Fourth Proportional to 7,220.40, 10,822.32 and 3,935.04

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Solution

The fourth proportional to 7,220.40, 10,822.32 and 3,935.04 is: 5,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.40 : 10,822.32 = 3,935.04 : x
  2. Step 2: Convert to fraction form
    7,220.40/10,822.32 = 3,935.04/x
  3. Step 3: Cross multiply
    7,220.40x = 10,822.32 × 3,935.04
  4. Step 4: Simplify right side
    7,220.40x = 42,586,262.09
  5. Step 5: Solve for x
    x = 42,586,262.09/7,220.40
  6. Step 6: Final answer
    x = 5,898.05

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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.