Home / 5,107.91-7,661.69-1,410.06

Finding the Fourth Proportional to 5,107.91, 7,661.69 and 1,410.06

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Solution

The fourth proportional to 5,107.91, 7,661.69 and 1,410.06 is: 2,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.91 : 7,661.69 = 1,410.06 : x
  2. Step 2: Convert to fraction form
    5,107.91/7,661.69 = 1,410.06/x
  3. Step 3: Cross multiply
    5,107.91x = 7,661.69 × 1,410.06
  4. Step 4: Simplify right side
    5,107.91x = 10,803,426.47
  5. Step 5: Solve for x
    x = 10,803,426.47/5,107.91
  6. Step 6: Final answer
    x = 2,115.04

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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.