Home / 3,220.13-4,830.18-2,116.51

Finding the Fourth Proportional to 3,220.13, 4,830.18 and 2,116.51

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Solution

The fourth proportional to 3,220.13, 4,830.18 and 2,116.51 is: 3,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.13 : 4,830.18 = 2,116.51 : x
  2. Step 2: Convert to fraction form
    3,220.13/4,830.18 = 2,116.51/x
  3. Step 3: Cross multiply
    3,220.13x = 4,830.18 × 2,116.51
  4. Step 4: Simplify right side
    3,220.13x = 10,223,124.27
  5. Step 5: Solve for x
    x = 10,223,124.27/3,220.13
  6. Step 6: Final answer
    x = 3,174.76

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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.