Home / 3,651.39-5,039.10-2,160.18

Finding the Fourth Proportional to 3,651.39, 5,039.10 and 2,160.18

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Solution

The fourth proportional to 3,651.39, 5,039.10 and 2,160.18 is: 2,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.39 : 5,039.10 = 2,160.18 : x
  2. Step 2: Convert to fraction form
    3,651.39/5,039.10 = 2,160.18/x
  3. Step 3: Cross multiply
    3,651.39x = 5,039.10 × 2,160.18
  4. Step 4: Simplify right side
    3,651.39x = 10,885,363.04
  5. Step 5: Solve for x
    x = 10,885,363.04/3,651.39
  6. Step 6: Final answer
    x = 2,981.16

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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.