Home / 4,320.45-5,960.21-2,807.91

Finding the Fourth Proportional to 4,320.45, 5,960.21 and 2,807.91

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Solution

The fourth proportional to 4,320.45, 5,960.21 and 2,807.91 is: 3,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.45 : 5,960.21 = 2,807.91 : x
  2. Step 2: Convert to fraction form
    4,320.45/5,960.21 = 2,807.91/x
  3. Step 3: Cross multiply
    4,320.45x = 5,960.21 × 2,807.91
  4. Step 4: Simplify right side
    4,320.45x = 16,735,719.22
  5. Step 5: Solve for x
    x = 16,735,719.22/4,320.45
  6. Step 6: Final answer
    x = 3,873.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.