Home / 2,717.51-3,749.95-1,538.35

Finding the Fourth Proportional to 2,717.51, 3,749.95 and 1,538.35

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Solution

The fourth proportional to 2,717.51, 3,749.95 and 1,538.35 is: 2,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.51 : 3,749.95 = 1,538.35 : x
  2. Step 2: Convert to fraction form
    2,717.51/3,749.95 = 1,538.35/x
  3. Step 3: Cross multiply
    2,717.51x = 3,749.95 × 1,538.35
  4. Step 4: Simplify right side
    2,717.51x = 5,768,722.36
  5. Step 5: Solve for x
    x = 5,768,722.36/2,717.51
  6. Step 6: Final answer
    x = 2,122.80

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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.