Home / 1,486.25-2,228.55-609.37

Finding the Fourth Proportional to 1,486.25, 2,228.55 and 609.37

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Solution

The fourth proportional to 1,486.25, 2,228.55 and 609.37 is: 913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.25 : 2,228.55 = 609.37 : x
  2. Step 2: Convert to fraction form
    1,486.25/2,228.55 = 609.37/x
  3. Step 3: Cross multiply
    1,486.25x = 2,228.55 × 609.37
  4. Step 4: Simplify right side
    1,486.25x = 1,358,011.51
  5. Step 5: Solve for x
    x = 1,358,011.51/1,486.25
  6. Step 6: Final answer
    x = 913.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.