Home / 1,489.55-2,054.61-1,174.32

Finding the Fourth Proportional to 1,489.55, 2,054.61 and 1,174.32

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Solution

The fourth proportional to 1,489.55, 2,054.61 and 1,174.32 is: 1,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.55 : 2,054.61 = 1,174.32 : x
  2. Step 2: Convert to fraction form
    1,489.55/2,054.61 = 1,174.32/x
  3. Step 3: Cross multiply
    1,489.55x = 2,054.61 × 1,174.32
  4. Step 4: Simplify right side
    1,489.55x = 2,412,769.62
  5. Step 5: Solve for x
    x = 2,412,769.62/1,489.55
  6. Step 6: Final answer
    x = 1,619.80

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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.