Home / 4,209.04-6,313.62-1,288.12

Finding the Fourth Proportional to 4,209.04, 6,313.62 and 1,288.12

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Solution

The fourth proportional to 4,209.04, 6,313.62 and 1,288.12 is: 1,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.04 : 6,313.62 = 1,288.12 : x
  2. Step 2: Convert to fraction form
    4,209.04/6,313.62 = 1,288.12/x
  3. Step 3: Cross multiply
    4,209.04x = 6,313.62 × 1,288.12
  4. Step 4: Simplify right side
    4,209.04x = 8,132,700.19
  5. Step 5: Solve for x
    x = 8,132,700.19/4,209.04
  6. Step 6: Final answer
    x = 1,932.20

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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.