Home / 3,742.56-5,613.63-1,145.49

Finding the Fourth Proportional to 3,742.56, 5,613.63 and 1,145.49

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Solution

The fourth proportional to 3,742.56, 5,613.63 and 1,145.49 is: 1,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.56 : 5,613.63 = 1,145.49 : x
  2. Step 2: Convert to fraction form
    3,742.56/5,613.63 = 1,145.49/x
  3. Step 3: Cross multiply
    3,742.56x = 5,613.63 × 1,145.49
  4. Step 4: Simplify right side
    3,742.56x = 6,430,357.03
  5. Step 5: Solve for x
    x = 6,430,357.03/3,742.56
  6. Step 6: Final answer
    x = 1,718.17

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1.5x scale

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.