Home / 1,458.38-2,010.81-1,191.84

Finding the Fourth Proportional to 1,458.38, 2,010.81 and 1,191.84

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Solution

The fourth proportional to 1,458.38, 2,010.81 and 1,191.84 is: 1,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.38 : 2,010.81 = 1,191.84 : x
  2. Step 2: Convert to fraction form
    1,458.38/2,010.81 = 1,191.84/x
  3. Step 3: Cross multiply
    1,458.38x = 2,010.81 × 1,191.84
  4. Step 4: Simplify right side
    1,458.38x = 2,396,563.79
  5. Step 5: Solve for x
    x = 2,396,563.79/1,458.38
  6. Step 6: Final answer
    x = 1,643.31

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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.