Home / 7,230.30-9,977.68-4,086.42

Finding the Fourth Proportional to 7,230.30, 9,977.68 and 4,086.42

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Solution

The fourth proportional to 7,230.30, 9,977.68 and 4,086.42 is: 5,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.30 : 9,977.68 = 4,086.42 : x
  2. Step 2: Convert to fraction form
    7,230.30/9,977.68 = 4,086.42/x
  3. Step 3: Cross multiply
    7,230.30x = 9,977.68 × 4,086.42
  4. Step 4: Simplify right side
    7,230.30x = 40,772,991.11
  5. Step 5: Solve for x
    x = 40,772,991.11/7,230.30
  6. Step 6: Final answer
    x = 5,639.18

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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.