Home / 1,685.67-2,327.37-1,574.85

Finding the Fourth Proportional to 1,685.67, 2,327.37 and 1,574.85

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Solution

The fourth proportional to 1,685.67, 2,327.37 and 1,574.85 is: 2,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.67 : 2,327.37 = 1,574.85 : x
  2. Step 2: Convert to fraction form
    1,685.67/2,327.37 = 1,574.85/x
  3. Step 3: Cross multiply
    1,685.67x = 2,327.37 × 1,574.85
  4. Step 4: Simplify right side
    1,685.67x = 3,665,258.64
  5. Step 5: Solve for x
    x = 3,665,258.64/1,685.67
  6. Step 6: Final answer
    x = 2,174.36

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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.