Home / 3,440.05-5,160.62-1,685.19

Finding the Fourth Proportional to 3,440.05, 5,160.62 and 1,685.19

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Solution

The fourth proportional to 3,440.05, 5,160.62 and 1,685.19 is: 2,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.05 : 5,160.62 = 1,685.19 : x
  2. Step 2: Convert to fraction form
    3,440.05/5,160.62 = 1,685.19/x
  3. Step 3: Cross multiply
    3,440.05x = 5,160.62 × 1,685.19
  4. Step 4: Simplify right side
    3,440.05x = 8,696,625.22
  5. Step 5: Solve for x
    x = 8,696,625.22/3,440.05
  6. Step 6: Final answer
    x = 2,528.05

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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.