Home / 2,619.77-3,931.01-1,742.89

Finding the Fourth Proportional to 2,619.77, 3,931.01 and 1,742.89

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Solution

The fourth proportional to 2,619.77, 3,931.01 and 1,742.89 is: 2,615.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.77 : 3,931.01 = 1,742.89 : x
  2. Step 2: Convert to fraction form
    2,619.77/3,931.01 = 1,742.89/x
  3. Step 3: Cross multiply
    2,619.77x = 3,931.01 × 1,742.89
  4. Step 4: Simplify right side
    2,619.77x = 6,851,319.54
  5. Step 5: Solve for x
    x = 6,851,319.54/2,619.77
  6. Step 6: Final answer
    x = 2,615.24

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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.