Home / 2,685.42-4,019.70-1,847.58

Finding the Fourth Proportional to 2,685.42, 4,019.70 and 1,847.58

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Solution

The fourth proportional to 2,685.42, 4,019.70 and 1,847.58 is: 2,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.42 : 4,019.70 = 1,847.58 : x
  2. Step 2: Convert to fraction form
    2,685.42/4,019.70 = 1,847.58/x
  3. Step 3: Cross multiply
    2,685.42x = 4,019.70 × 1,847.58
  4. Step 4: Simplify right side
    2,685.42x = 7,426,717.33
  5. Step 5: Solve for x
    x = 7,426,717.33/2,685.42
  6. Step 6: Final answer
    x = 2,765.57

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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.