Home / 2,017.20-3,025.90-1,045.20

Finding the Fourth Proportional to 2,017.20, 3,025.90 and 1,045.20

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Solution

The fourth proportional to 2,017.20, 3,025.90 and 1,045.20 is: 1,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.20 : 3,025.90 = 1,045.20 : x
  2. Step 2: Convert to fraction form
    2,017.20/3,025.90 = 1,045.20/x
  3. Step 3: Cross multiply
    2,017.20x = 3,025.90 × 1,045.20
  4. Step 4: Simplify right side
    2,017.20x = 3,162,670.68
  5. Step 5: Solve for x
    x = 3,162,670.68/2,017.20
  6. Step 6: Final answer
    x = 1,567.85

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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.