Home / 1,613.25-2,226.56-1,219.59

Finding the Fourth Proportional to 1,613.25, 2,226.56 and 1,219.59

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Solution

The fourth proportional to 1,613.25, 2,226.56 and 1,219.59 is: 1,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.25 : 2,226.56 = 1,219.59 : x
  2. Step 2: Convert to fraction form
    1,613.25/2,226.56 = 1,219.59/x
  3. Step 3: Cross multiply
    1,613.25x = 2,226.56 × 1,219.59
  4. Step 4: Simplify right side
    1,613.25x = 2,715,484.21
  5. Step 5: Solve for x
    x = 2,715,484.21/1,613.25
  6. Step 6: Final answer
    x = 1,683.24

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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.