Home / 2,065.80-2,847.24-1,402.32

Finding the Fourth Proportional to 2,065.80, 2,847.24 and 1,402.32

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Solution

The fourth proportional to 2,065.80, 2,847.24 and 1,402.32 is: 1,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.80 : 2,847.24 = 1,402.32 : x
  2. Step 2: Convert to fraction form
    2,065.80/2,847.24 = 1,402.32/x
  3. Step 3: Cross multiply
    2,065.80x = 2,847.24 × 1,402.32
  4. Step 4: Simplify right side
    2,065.80x = 3,992,741.60
  5. Step 5: Solve for x
    x = 3,992,741.60/2,065.80
  6. Step 6: Final answer
    x = 1,932.78

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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.