Home / 2,919.40-4,028.88-1,740.58

Finding the Fourth Proportional to 2,919.40, 4,028.88 and 1,740.58

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Solution

The fourth proportional to 2,919.40, 4,028.88 and 1,740.58 is: 2,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.40 : 4,028.88 = 1,740.58 : x
  2. Step 2: Convert to fraction form
    2,919.40/4,028.88 = 1,740.58/x
  3. Step 3: Cross multiply
    2,919.40x = 4,028.88 × 1,740.58
  4. Step 4: Simplify right side
    2,919.40x = 7,012,587.95
  5. Step 5: Solve for x
    x = 7,012,587.95/2,919.40
  6. Step 6: Final answer
    x = 2,402.06

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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.