Home / 5,209.92-7,182.21-3,715.24

Finding the Fourth Proportional to 5,209.92, 7,182.21 and 3,715.24

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Solution

The fourth proportional to 5,209.92, 7,182.21 and 3,715.24 is: 5,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.92 : 7,182.21 = 3,715.24 : x
  2. Step 2: Convert to fraction form
    5,209.92/7,182.21 = 3,715.24/x
  3. Step 3: Cross multiply
    5,209.92x = 7,182.21 × 3,715.24
  4. Step 4: Simplify right side
    5,209.92x = 26,683,633.88
  5. Step 5: Solve for x
    x = 26,683,633.88/5,209.92
  6. Step 6: Final answer
    x = 5,121.70

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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.