Home / 2,717.42-3,749.90-1,538.19

Finding the Fourth Proportional to 2,717.42, 3,749.90 and 1,538.19

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Solution

The fourth proportional to 2,717.42, 3,749.90 and 1,538.19 is: 2,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.42 : 3,749.90 = 1,538.19 : x
  2. Step 2: Convert to fraction form
    2,717.42/3,749.90 = 1,538.19/x
  3. Step 3: Cross multiply
    2,717.42x = 3,749.90 × 1,538.19
  4. Step 4: Simplify right side
    2,717.42x = 5,768,050.99
  5. Step 5: Solve for x
    x = 5,768,050.99/2,717.42
  6. Step 6: Final answer
    x = 2,122.62

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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.