Home / 2,015.20-3,017.20-1,862.08

Finding the Fourth Proportional to 2,015.20, 3,017.20 and 1,862.08

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Solution

The fourth proportional to 2,015.20, 3,017.20 and 1,862.08 is: 2,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.20 : 3,017.20 = 1,862.08 : x
  2. Step 2: Convert to fraction form
    2,015.20/3,017.20 = 1,862.08/x
  3. Step 3: Cross multiply
    2,015.20x = 3,017.20 × 1,862.08
  4. Step 4: Simplify right side
    2,015.20x = 5,618,267.78
  5. Step 5: Solve for x
    x = 5,618,267.78/2,015.20
  6. Step 6: Final answer
    x = 2,787.95

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1.5x scale

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.