Home / 1,489.35-2,054.77-1,148.79

Finding the Fourth Proportional to 1,489.35, 2,054.77 and 1,148.79

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Solution

The fourth proportional to 1,489.35, 2,054.77 and 1,148.79 is: 1,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.35 : 2,054.77 = 1,148.79 : x
  2. Step 2: Convert to fraction form
    1,489.35/2,054.77 = 1,148.79/x
  3. Step 3: Cross multiply
    1,489.35x = 2,054.77 × 1,148.79
  4. Step 4: Simplify right side
    1,489.35x = 2,360,499.23
  5. Step 5: Solve for x
    x = 2,360,499.23/1,489.35
  6. Step 6: Final answer
    x = 1,584.92

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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.