Home / 4,086.30-6,127.65-1,620.30

Finding the Fourth Proportional to 4,086.30, 6,127.65 and 1,620.30

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Solution

The fourth proportional to 4,086.30, 6,127.65 and 1,620.30 is: 2,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.30 : 6,127.65 = 1,620.30 : x
  2. Step 2: Convert to fraction form
    4,086.30/6,127.65 = 1,620.30/x
  3. Step 3: Cross multiply
    4,086.30x = 6,127.65 × 1,620.30
  4. Step 4: Simplify right side
    4,086.30x = 9,928,631.30
  5. Step 5: Solve for x
    x = 9,928,631.30/4,086.30
  6. Step 6: Final answer
    x = 2,429.74

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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.