Home / 1,613.05-2,225.68-1,114.90

Finding the Fourth Proportional to 1,613.05, 2,225.68 and 1,114.90

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Solution

The fourth proportional to 1,613.05, 2,225.68 and 1,114.90 is: 1,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.05 : 2,225.68 = 1,114.90 : x
  2. Step 2: Convert to fraction form
    1,613.05/2,225.68 = 1,114.90/x
  3. Step 3: Cross multiply
    1,613.05x = 2,225.68 × 1,114.90
  4. Step 4: Simplify right side
    1,613.05x = 2,481,410.63
  5. Step 5: Solve for x
    x = 2,481,410.63/1,613.05
  6. Step 6: Final answer
    x = 1,538.33

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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.