Home / 1,613.25-2,226.28-914.62

Finding the Fourth Proportional to 1,613.25, 2,226.28 and 914.62

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Solution

The fourth proportional to 1,613.25, 2,226.28 and 914.62 is: 1,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.25 : 2,226.28 = 914.62 : x
  2. Step 2: Convert to fraction form
    1,613.25/2,226.28 = 914.62/x
  3. Step 3: Cross multiply
    1,613.25x = 2,226.28 × 914.62
  4. Step 4: Simplify right side
    1,613.25x = 2,036,195.64
  5. Step 5: Solve for x
    x = 2,036,195.64/1,613.25
  6. Step 6: Final answer
    x = 1,262.17

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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.