Home / 2,685.39-4,025.66-1,384.13

Finding the Fourth Proportional to 2,685.39, 4,025.66 and 1,384.13

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Solution

The fourth proportional to 2,685.39, 4,025.66 and 1,384.13 is: 2,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.39 : 4,025.66 = 1,384.13 : x
  2. Step 2: Convert to fraction form
    2,685.39/4,025.66 = 1,384.13/x
  3. Step 3: Cross multiply
    2,685.39x = 4,025.66 × 1,384.13
  4. Step 4: Simplify right side
    2,685.39x = 5,572,009.73
  5. Step 5: Solve for x
    x = 5,572,009.73/2,685.39
  6. Step 6: Final answer
    x = 2,074.94

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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.