Home / 7,078.91-10,617.54-1,885.19

Finding the Fourth Proportional to 7,078.91, 10,617.54 and 1,885.19

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Solution

The fourth proportional to 7,078.91, 10,617.54 and 1,885.19 is: 2,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.91 : 10,617.54 = 1,885.19 : x
  2. Step 2: Convert to fraction form
    7,078.91/10,617.54 = 1,885.19/x
  3. Step 3: Cross multiply
    7,078.91x = 10,617.54 × 1,885.19
  4. Step 4: Simplify right side
    7,078.91x = 20,016,027.14
  5. Step 5: Solve for x
    x = 20,016,027.14/7,078.91
  6. Step 6: Final answer
    x = 2,827.56

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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.