Home / 7,145.10-10,718.91-2,465.61

Finding the Fourth Proportional to 7,145.10, 10,718.91 and 2,465.61

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Solution

The fourth proportional to 7,145.10, 10,718.91 and 2,465.61 is: 3,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.10 : 10,718.91 = 2,465.61 : x
  2. Step 2: Convert to fraction form
    7,145.10/10,718.91 = 2,465.61/x
  3. Step 3: Cross multiply
    7,145.10x = 10,718.91 × 2,465.61
  4. Step 4: Simplify right side
    7,145.10x = 26,428,651.69
  5. Step 5: Solve for x
    x = 26,428,651.69/7,145.10
  6. Step 6: Final answer
    x = 3,698.85

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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.