Home / 2,918.60-4,028.74-1,799.72

Finding the Fourth Proportional to 2,918.60, 4,028.74 and 1,799.72

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Solution

The fourth proportional to 2,918.60, 4,028.74 and 1,799.72 is: 2,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.60 : 4,028.74 = 1,799.72 : x
  2. Step 2: Convert to fraction form
    2,918.60/4,028.74 = 1,799.72/x
  3. Step 3: Cross multiply
    2,918.60x = 4,028.74 × 1,799.72
  4. Step 4: Simplify right side
    2,918.60x = 7,250,603.95
  5. Step 5: Solve for x
    x = 7,250,603.95/2,918.60
  6. Step 6: Final answer
    x = 2,484.27

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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.